Main entry: fly off the handle, flip one's lid, flip one's wig, lose one's temper, combust, blow a fuse, blow one's stack, blow up, have a fit, have kittens, go ballistic, hit the ceiling, hit the roof, throw a fit
Definition: get very angry and fly into a rage
Usage: The professor combusted when the student didn't know the answer to a very elementary question; Spam makes me go ballistic