| A | B |
| Back to square one. | Start over. |
| I was between a rock and a hard place. | I have to make a difficult decision. |
| I have butterflies in my stomach. | I feel nervous. |
| Let's call it a day. | Let's stop working for the day. |
| Chill out. | To relax or calm down. |
| They were a dime a dozen. | They were very common. |
| It was food for thought. | An idea worth thinking about. |
| I get a kick out of (something). | I really enjoy something. |
| I got up on the wrong side of bed. | I felt grumpy. |
| Hang in there. | To not give up. |
| Hit the books. | To study. |
| He/she hit the nail on the head. | He/she had come to the right conclusion. |
| I felt "left out in the cold." | I felt excluded or that I wasn't told something. |
| Mind your P's and Q's. | Mind your manners. |
| That is not my cup of tea. | It is not what you like or prefer. |
| She/he is on the ball. | She/he is very knowledgeable |
| The child was out like a light. | The child was fast asleep. |
| I am out of here. | I'm leaving. |
| It was a piece of cake. | It was easy. |
| Turn over a new leaf. | To change one's attitude/behaviors. |