| Flip |
| Snap |
| Freak |
| Go ape |
| Wig out |
| Go nuts |
| Blow up? |
| Go postal |
| ____ face! |
| Go berserk |
| Go bonkers |
| Go bananas |
| Flip (out) |
| Have kittens |
| Come unglued |
| Go ballistic? |
| Go to pieces? |
| Become enraged |
| Blow one's top |
| Have a tantrum |
| Become unglued |
| Blow up, maybe |
| Fly into a rage |
| Go postal: 2 wds. |
| Snap and then some |
| Go completely nuts |
| Suddenly go berserk |
| Go off the deep end: 2 wds. |