1. Go bananas
E.g. I'll end up going bananas if I have to work in this cubicle for one more day!
2. Go nuts
E.g. The noise caused all the neighbors to go nuts.
3. Lose it
E.g. Mom is going to lose it when she gets home and finds out that we broke her vase.
4. Go mental
E.g. My parents are going to go mental if they find out we had a party here!
5. Freak out
E.g. Mom will freak out when she found out we broke her vase!
6. Go bonkers
E.g. The drivers in this country seem to go completely bonkers if there's even a little bit of snow on the ground.
7. Go berserk
E.g. She went berserk and strangled her cat.
8. Blow one’s top
E.g. I think he’ll blow his top when you give him the news.
9. Fly off the handle
E.g. I know you're upset, but there's no point flying off the handle like that.
10. Hit the roof
E.g. My parents are going to hit the roof if they find out we had a party here!
11. Go ballistic
E.g. My parents went totally ballistic when they found out I'd wrecked the car!
12. Go off the deep end
E.g. I only put a tiny scratch on your car, so there's no need to go off the deep end.
13. Blow up
E.g. When I saw the look on Sarah’s face, I just know she’d blow up
14. Pop one’s cork
E.g. She tried to hold it back, but suddenly she popped her cork.
15. Go ape
E.g. July will go ape if she ever hears about it.