Question

to hit the roof - She hit the roof when he told her he couldn't come after all.  - My parents hit the roof when I told them I'd dropped out of college.  - She'll hit the roof if she knows I paid this much for a pair of shoes.  - When I tell the boss I don't want to do it, he's going to hit the roof, because he needs somebody training for it In order to qualify for some extra funding.

Accepted Answer

to suddenly become very angry

Idiom	to hit the roof
Definition	to suddenly become very angry
Examples	- She hit the roof when he told her he couldn't come after all. - My parents hit the roof when I told them I'd dropped out of college. - She'll hit the roof if she knows I paid this much for a pair of shoes. - When I tell the boss I don't want to do it, he's going to hit the roof, because he needs somebody training for it In order to qualify for some extra funding.

Hit Roof I Told Suddenly Angry Parents Dropped