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flip one's wig

vb. 1 (context idiomatic colloquial English) To be very angry. 2 (context idiomatic colloquial English) To act in an irrational manner or appear to be temporarily insane.

flip one's wig

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