Are you looking for some useful idioms for kids?
Well, you are in the right place.
In this post, have a huge list of some of the most popular idioms for kids.
For each idiom, we are going to explain what it means and how to use it in a sentence.
95 Idioms For Kids (Meaning & Examples)
1. As Easy As ABC
- Meaning: something that is very easy to do.
- Use In A Sentence: Learning to use an iPad is as easy as ABC.
2. To Be A Class Clown
- Meaning: a student who acts silly in class to get the attention and laughs from others.
- Use In A Sentence: Don’t listen to Johnny. He is such a class clown.
3. To Cost An Arm And A Leg
- Meaning: to be very expensive.
- Use In A Sentence: I watch to buy an ice cream sandwich, but it costs an arm and a leg here. Let’s go somewhere else.
4. To Be A Happy Camper
- Meaning: to be very happy.
- Use In A Sentence: Mom is not going to be a happy camper when she finds out that you skipped school.
5. To Sleep Like A Log
- Meaning: to get a very deep sleep. So much so that one isn’t disturbed easily.
- Use In A Sentence: After the first week of football practice, I slept like a log.
- Meaning: Someone who is afraid; a coward.
- Use In A Sentence: Don’t be a chicken! This roller coaster isn’t as scary as it looks.
7. To Have A Sleepover
- Meaning: to spend the night in another person’s house.
- Use In A Sentence: Jill was so excited when her mom told her she could have a sleepover and invite her 3 best friends.
8. Hold Your Horses
- Meaning: to tell someone to slow down or to tell them to wait.
- Use In A Sentence: Hold your horses! We are going to leave in a minute. I just need to put away the food.
9. To Be Hot Water
- Meaning: to be in trouble.
- Use In A Sentence: You are going to be in hot water if mom finds out you were playing video games instead of doing your homework.
10. Black And Blue
- Meaning: to be bruised.
- Use In A Sentence: I was all black and blue after falling off my bike.
11. To Be As Busy As A Bee
- Meaning: to be very busy.
- Use In A Sentence: Tim was busy as a bee preparing for his first day of school.
12. To Be As Strong As A Lion
- Meaning: used to describe a person who is really strong or in good physical condition.
- Use in a sentence: My Dad is as strong as a lion.
13. To Put A Bug In One’s Ear
- Meaning: to make a suggestion.
- Use in a sentence: I really want to go to the beach this weekend. I will try to put a bug in Mom and Dad’s ear.
14. To Give Someone A Fish-Kiss
- Meaning: to kiss someone with puckered lips like a fish.
- Use in a sentence: Max fish-kissed his girlfriend right in front of the whole class.
15. To Drag One’s Feet
- Meaning: to move slowly usually because one doesn’t want to do something.
- Use In A Sentence: Will you quit dragging your feet? We need to clean the house before mom and dad come home.
16. To Rain Cats And Dogs
- Meaning: To be raining very heavily.
- Example In A Sentence: Mom said we can’t go outside right now because it is going to rain cats and dogs.
17. To Be A Cutie Pie
- Meaning: a term of endearment used to refer to a cute person, usually a child.
- Use In A Sentence: Good afternoon cutie pie. How was your first day of school?
18. Do You Kiss Your Momma With That Mouth?
- Meaning: an expression used to tell someone they need to clean up their speech, by not using obscenities, vulgar language, etc.
- Use In A Sentence: Do you think those words are respectful? Do you kiss your momma with that mouth? You better behave or else I will tell your parents.
19. To Monkey Around
- Meaning: to waste time.
- Use In A Sentence: Okay. Enough already. Stop monkeying around and go get your homework done.
20. To Be In The Same Boat
- Meaning: to be in the same situation as another person.
- Use In A Sentence: Are you going to go to Lisa’s house? Mom said I can’t go until I finish my homework. We are both in the same boat. My dad told me the same thing.
21. To Be A Piece Of Cake
- Meaning: to say that something is extremely easy to do.
- Use In A Sentence: That math test was a piece of cake.
22. To See Eye To Eye With Someone
- Meaning: to agree about something with someone.
- Use In A Sentence: Dad and I don’t see eye to eye on a number of different things.
23. To Slip One’s Mind
- Meaning: to forget something.
- Use In A Sentence: I am sorry I forgot about meeting up with you after school. It completely slipped my mind.
24. To Let The Cat Out Of The Bag
- Meaning: to tell a secret.
- Use In A Sentence: How did your sister find out about the surprise party? Who let the cat out of the bag?
25. The Elephant In The Room
- Meaning: a serious problem that everyone is aware of.
- Use In A Sentence: Okay first let’s talk about the elephant in the room. Why are you wearing a cast on your leg?
26. To Stir The Hornet’s Nest
- Meaning: to cause a lot of trouble or problems.
- Use In A Sentence: Why did you have to come in and stir the hornet’s nest? I was so close to convincing mom and dad to let us go to grandma’s house this weekend.
27. To Have Second Thoughts About Something
- Meaning: to doubt or to reconsider something.
- Use In A Sentence: I am starting to have seconds thoughts about this. Do you really think this is a good idea?
28. To Give One’s Two Cent’s Worth
- Meaning: to share one opinion. Oftentimes when it is not asked for.
- Use In A Sentence: If I can give my two cent’s worth, I think you should buy the car. It is not a lot of money and it is really big for the family.
29. To Have Ants In One’s Pants
- Meaning: to be restless. Usually because of having a lot of energy, anxiety, or lacking patience.
- Use In A Sentence: Will you just sit still for five minutes while I talk to your teacher? Do you have ants in your pants or what?
30. To Move At A Snail’s Pace
- Meaning: to do something very slowly.
- Use In A Sentence: Why are you moving at a snail’s pace? Is something wrong? Are you sick?
31. To Wake Up On The Wrong Side Of The Bed
- Meaning: to wake up in a bad mood. To be unhappy or grumpy.
- Use In A Sentence: What is Max’s problem? It seems like he woke up on the wrong side of the bed this morning.
32. To Not Be The Sharpest Pencil In The Cup
- Meaning: used to refer to someone who is slow, unintelligent, or stupid.
- Use In A Sentence: He may not be the sharpest pencil in the cup, but he sure knows how to play football.
33. To Know Someone Or Something Like A Book
- Meaning: to know something or someone very well.
- Use In A Sentence: Do you know Wayne very well? Yes, we have been in the same school since I was six. I know him like a book. What do you want to know about him?
34. To Be A Sitting Duck
- Meaning: to be in a vulnerable position. An easy target.
- Use In A Sentence: Please don’t wear that hat to school. It looks weird and you will be sitting ducks for jokes on the playground.
35. To Be A Guinea Pig
- Meaning: a person that is used for an experiment.
- Use In A Sentence: Mary used her children as guinea pigs to try out her new cookie recipe. It was a success!
36. To Be A Fly On The Wall
- Meaning: someone who watches but isn’t noticed by others.
- Use In A Sentence: I would love to be a fly on the wall when mom talks to my brother. I think he is in big trouble.
37. To Eat Like A Bird
- Meaning: to eat very little.
- Use In A Sentence: Why doesn’t Brian eat? Is he sick? No, he has always been like that. He eats very little. Mom and dad always said he eats like a bird.
38. To Be Dumber Than A Doornail
- Meaning: very stupid.
- Use In A Sentence: She thought she could drive her car 10,000 miles without changing the oil. Wow, she is dumber than a doornail.
39. To Talk One’s Arm Off
- Meaning: when a person talks so much that those around them get bored.
- Use In A Sentence: If you are planning on talking to Amy be prepared to stay awhile. The last time I went to her house she talked my arm off.
40. To Be An Early Bird
- Meaning: a person that often arrives early to an event.
- Use In A Sentence: We better get up early if you want to beat the early birds.
41. To Wet One’s Whistle
- Meaning: to get a drink.
- Use In A Sentence: Could I trouble you for a glass of water? I just need to wet my whistle before playing another game.
42. To Be A Night Owl
- Meaning: someone that tends to stay up late.
- Use In A Sentence: Be careful not to wake up Sam. You know, he didn’t go to bed until 3 a.m. this morning. Wow, he is such a night owl.
43. To Be Clean As A Whistle
- Meaning: extremely clean.
- Use In A Sentence: When I get back I want this room to be as clean as a whistle.
44. To Go Out On A Limb
- Meaning: To take a risk. To do something that isn’t common.
- Use In A Sentence: Megan wanted to go out on a limb and try something completely different from everyone else.
45. Word On The Street
- Meaning: information that is being passed from one person to the next. What kids are talking about on the playground.
- Use In A Sentence: The word on the street is that Johnny is moving to Tennessee.
46. To Be Light On One’s Feet
- Meaning: to be quick or to move gracefully like a dancer.
- Use In A Sentence: Because he plays football I wasn’t expecting him to be a good dancer, but he is light on his feet.
47. To Blow The Whistle On Something Or Something
- Meaning: to expose someone for doing something they should be doing.
- Use In A Sentence: I was sure we weren’t going to get caught, but Greg just had to go and blow the whistle on us.
48. To Give Someone The Green Light
- Meaning: to give someone permission to do something.
- Use In A Sentence: Okay guys, I talked with my mom and she gave me the green light. I can spend the night at your house, but I need to be home before 9:00 tomorrow.
49. To Be On The Same Page
- Meaning: when two people think the same thing about something. To say that two people are in agreement about something.
- Use In A Sentence: It is much easier to work as a team when everyone is on the same page.
50. To Give Someone The Cold Shoulder
- Meaning: to ignore someone. To deliberately be unfriendly with them.
- Use In A Sentence: I don’t know if it was something I said, but ever since Monday, Jeff has been giving me the cold shoulder.
51. To Spill The Beans
- Meaning: to reveal a secret.
- Use In A Sentence: How did mom find out about her gift? I want to know who spilled the beans.
52. To Be Like Two Peas In A Pod
- Meaning: used to describe to people that share the same interest or two people that have a lot of things in common.
- Use In A Sentence: Jessica and Megan are like two peas in a pod, they are always hanging out together.
53. The Ball Is In Your Court
- Meaning: this is a term used to describe when a person has the responsibility to take action or to make a decision.
- Use In A Sentence: Now, the ball is in your court. You have to make a decision. Are you going to go to the party or not?
54. To Spice Something Up
- Meaning: to make something interesting.
- Use In A Sentence: English class was so boring until the teacher decided to spice things up by cracking some jokes.
55. To Drop The Ball
- Meaning: to make a mistake, to miss an opportunity, or to forget something.
- Use In A Sentence: Everything was going great until Megan dropped the ball and forgot to turn in our team’s homework.
56. To Skating On Thin Ice
- Meaning: to be engaging in risky behavior, something that could get on in a lot of trouble.
- Use In A Sentence: Sam is skating on thin ice. One day he is going to get caught skipping school and then he won’t be so happy.
57. To Walk On Eggshells
- Meaning: to be very careful not to upset another person.
- Use In A Sentence: Caleb gets mad very easily. It makes me feel uncomfortable. I always feel like I am walking on eggshells when I am around him.
58. To Rule The School
- Meaning: to rule the school means to be very influential in one’s school
- Use In A Sentence: I don’t like talking with the 5th graders. They think that because they are older they rule the school.
59. To Throw In The Towel
- Meaning: to give up on something.
- Use In A Sentence: After spending 6 months on the project and making very little progress Steve decided to throw in the towel.
60. To Sweat Like A Pig
- Meaning: to sweat a lot.
- Use In A Sentence: Can you roll down the window. It is so hot in here. I am sweating like a pig.
61. Don’t Judge A Book By Its Cover
- Meaning: don’t base your opinion about something or someone based solely on looks
- Use In A Sentence: I don’t know about this restaurant. It looks kind of dumpy. Don’t judge a book by its cover. This is the best Chinese restaurant in town.
62. To Cry Wolf
- Meaning: to say something is happening when it really isn’t. Oftentimes a person does this so often that people stop believing what they say.
- Use In A Sentence: I am sure it is not that bad. Jane is always crying wolf about something.
63. To Crack A Window
- Meaning: to open a window.
- Use In A Sentence: I think I am getting carsick. Could you crack open the window? I need some fresh air.
64. To Fight Like Cats And Dogs
- Meaning: used to describe two people that don’t get along. Every time they are together they end up fighting.
- Use In A Sentence: I don’t want to be on the same team as Jessica and Tara. They fight like cats and dogs.
65. To Cram For A Test
- Meaning: to study for a test moments before you are going to take the test.
- Use In A Sentence: I think you would have done better on the math test if you didn’t cram for the test at the last minute.
66. To Speak A Mile A Minute
- Meaning: to speak very quickly.
- Use In A Sentence: I don’t know what she said. She speaks a mile a minute. It was hard for me to keep up.
67. To Be A One Trick Pony
- Meaning: a person who does one thing very well or they have only been successful once.
- Use In A Sentence: Whatever happened to the group that sings this song? I guess they were just a one-trick pony. None of their other songs took off.
68. It’s Not Rocket Science
- Meaning: an expression used to describe something that isn’t very difficult to do.
- Use In A Sentence: Algebra isn’t rocket science. You just need to pay close attention to what the teacher says in class.
69. To Miss Something By A Mile
- Meaning: to miss the goal or objective by a very large margin.
- Use In A Sentence: I thought you said he was good at playing darts? Everytime he threw a dart it missed by a mile.
70. To Cut The Cheese
- Meaning: slang for passing gas.
- Use In A Sentence: It smells in here? Matt, did you cut the cheese again?
71. To Be Old School
- Meaning: used to describe someone who is old fashioned. It can also refer to an older style.
- Use In A Sentence: I like those sunglasses they are super old school.
72. To Have One’s Nose In A Book
- Meaning: to read a book. Usually, it is used to say that someone is always reading a book.
- Use In A Sentence: Where is Frank? I don’t know, but I am sure he is in his room with his nose in a book.
73. To Have A Sweet Tooth
- Meaning: a person that has a sweet tooth likes to eat a lot of sweets.
- Use In A Sentence: If you are looking for something sweet, go talk to Mary. She has a sweet tooth and she always carrying some sort of candy in her backpack.
74. To Get One’s Feet Wet
- Meaning: to try something new.
- Use In A Sentence: If you are thinking about playing a musical instrument, start by getting your feet wet with the recorder. If you like it, you can advance to something a little more difficult.
75. To Take By Storm
- Meaning: to become very popular very quickly.
- Use In A Sentence: That new boy band took our school by storm. It seemed like everyone was listening to their music.
76. To Have Butterflies In One’s Stomach
- Meaning: to be nervous about something.
- Use In A Sentence: I always get butterflies in my stomach just before playing in the school concert.
77. To Go On A Wild Goose Chase
- Meaning: to look for something that seems impossible to find.
- Use In A Sentence: I can’t believe I went on a wild goose chase looking for a book that is out of print.
78. To Be The Black Sheep
- Meaning: used to describe someone as different from other members of a group such as a family.
- Use In A Sentence: Brittany is the black sheep of the family, choosing to drop out of college to pursue her dreams.
79. An Eagle Eye
- Meaning: used to describe a person that watching things very carefully and picks up on small details.
- Use In A Sentence: The students complete their tests under the eagle eye of their teacher.
80. To See The Glass As Half Empty
- Meaning: a person that always sees the negative in a given situation.
- Use In A Sentence: Oftentimes when people think about the future they see the glass as half empty.
81. To See The Glass As Half Full
- Meaning: a person that always sees the positive in a situation. To be optimistic.
- Use In A Sentence: Amy is such a positive person. Even when it seems like something is going to fail she always sees the glass as half full.
82. To Think Outside The Box
- Meaning: to think about something in a new creative way.
- Use In A Sentence: We really need to think outside the box if we want to win.
83. A Cow Pie
- Meaning: a slang term used for manure.
- Use In A Sentence: What is that smell? Someone must have stepped in a cow pie when we were out in the field.
84. To Kid Around With Someone
- Meaning: to joke with someone.
- Use In A Sentence: I don’t think he is really going to do that. I think he was just kidding around.
85. To Cuddle Up With A Good Book
- Meaning: to make oneself comfortable in order to read a good book.
- Use In A Sentence: Hey Pam, do you have any plans for the weekend? I was going to go hiking, but it is supposed to rain. I think I will just cuddle up with a good book.
86. A Whole New Ball Game
- Meaning: a situation that is completely new to someone. Perhaps different than what was expected.
- Use In A Sentence: Going to 3rd grade in a new school will be a whole new ball game for him.
87. To Think On One’s Feet
- Meaning: to think quickly. To be able to make difficult decisions quickly. To react quickly.
- Use In A Sentence: In order to do well on the debate team, you need to be able to think on your feet.
88. To Cut Class / To Cut School
- Meaning: to skip a class or to skip school.
- Use In A Sentence: If mom finds out you cut class she will be very upset.
89. To Not Be One’s Cup Of Tea
- Meaning: used to describe something that a person does not like or does not like doing.
- Use In A Sentence: Are you going to invite Ivan? Playing baseball is not his cup of tea.
90. To Make A Mental Note About Something
- Meaning: to make a conscious effort to remember something.
- Use In A Sentence: Before entering the building, Johnny made a mental note of the things his mom told him to buy at the grocery store.
91. Cool Beans!
- Meaning: Cool, awesome, great!
- Use In A Sentence: Can you come to my party on Saturday night? Yes, what time. It starts at 7 pm. Cool Beans! I will be there.
92. To Be Like A Kid In A Candy Store
- Meaning: to be so excited about something that one acts like a child.
- Use In A Sentence: When Bob walked into the computer store he was like a kid in a candy store. He didn’t know where to start looking.
93. One’s Stomach Is In Knots
- Meaning: to be anxious or nervous about something.
- Use In A Sentence: Ricky told me his stomach was all in knots for his first day at school.
94. To Pull One’s Leg
- Meaning: to joke with someone.
- Use In A Sentence: I don’t think the teacher meant that. I think he was just pulling your leg.
95. To Be Quiet As A Mouse
- Meaning: to be very quiet.
- Use In A Sentence: Jake was as quiet as a mouse sitting in the back of the room.
There you have it 95 idioms for children. Did we miss one? If so, please let us know in the comments below.