What are some common idiomatic phrases in English?

There are numerous common idiomatic phrases in English. Here are a few examples:

1. "Break a leg" - This phrase is used to wish someone good luck, especially before a performance or presentation.

2. "Bite the bullet" - It means to face a difficult or unpleasant situation with courage and determination.

3. "Piece of cake" - This phrase is used to describe something that is very easy or effortless.

4. "Kick the bucket" - It is a euphemism for dying or passing away.

5. "Hit the nail on the head" - This phrase means to accurately or precisely identify or describe something.

6. "Cost an arm and a leg" - It is used to describe something that is very expensive.

7. "Let the cat out of the bag" - This phrase means to reveal a secret or disclose information that was meant to be kept hidden.

8. "Barking up the wrong tree" - It means to pursue a mistaken or misguided course of action or to accuse the wrong person.

9. "A penny for your thoughts" - This phrase is used to ask someone what they are thinking or to invite them to share their thoughts or opinions.

10. "The ball is in your court" - It means that it is now someone else's turn or responsibility to take action or make a decision.

These are just a few examples, and there are many more idiomatic phrases used in English.