Flip one's wig

verb, slang

Definitions

Verb
  1. 1
    To become very angry. idiomatic, informal
  2. 2
    get very angry and fly into a rage wordnet
  3. 3
    To act in an irrational manner or appear to be temporarily insane. idiomatic, informal

    "You've flipped your wig!"

Etymology

A variation of flip one's lid.

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