brush up on – study, revise
- You’ll have to brush up on your French before we go to Toulouse next month.
bend over backwards – do a lot to help
- I’ve bent over backwards trying to help them and this is how they repay me!
have it out with – argue or discuss in order to clarify
- You’ve got to have it out with her about your finances, sooner or later.
hang up on – prematurely end a phone call
- The line went dead! I think she hung up on me!