1. We tried to give Tommy a surprise party for his birthday, but you let the cat out of the bag.
This means that somebody shared a secret with someone who was not supposed to know.
2. Kevin accepted the job even though he was still in school, but his mom thought he might be biting off more than he could chew.
This means that he was taking on more than he could handle.
3. I didn't want to jump the gun, so I decided to wait until the second date to try and hold her hand.
This means that somebody did something too soon, before the time was right.
4. Derek hated how much his mom nagged him about homework. He didn't really see why it mattered and he thought that his mom was making a mountain out of a molehill.
This means that someone was making a big deal about a small matter.
5. Alice was feeling a little under the weather, so she asked her mom if she could stay home today.
This means that she was sick.
6. Tammy wanted to yell at John for leaving the toilet seat up again, but after their last fight she decided to let sleeping dogs lie.
This means that she wanted to ignore a problem to avoid a fight.
7. Jude was on pins and needles waiting for the results of the test.
This means that someone is very anxious or worried about something.
8. I like Chris. He's a cool guy.
This means that he is likeable and easygoing.
9. Craig and I fought over a girl in the fourth grade, but that's water under the bridge now.
This means that the problem is in the past and is no longer an issue.
10. Jeffrey was a fast learner, so he knew that the history test would be a piece of cake.
This means that it would be easy.
11. I told Tom to stop telling Kim all of his feelings, but he always did wear his heart on his sleeve.
This means that he does not conceal his feelings.
12. Every player is important on a football team, but a good quarter back is worth his weight in gold.
This means that someone is very useful or valuable.
13. Kylie's mother wanted her to play the piano but, as much as Kylie wanted to make her mother happy, playing the piano was just not her cup of tea.
This means that it was not something that she was neither good at nor enjoyed.
14. I don't mean to toot my own horn, but I'm the fastest kid on my block and the smartest too.
This means to brag about oneself.
15. Look, you know that she's never liked you, so take her criticism with a grain of salt.
This means to not value someone's comments or opinions.