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flip (one's) wig
To react to something, good or bad, with strong emotion. I had to talk to Mr. Myers about the botched report today, and boy, did he flip his wig. I figured Aunt June would be excited to hear I'm getting married, but she totally flipped her wig!
flip one's wigand flip one's lid
Sl. to suddenly become angry, crazy, or enthusiastic. Whenever anyone mentions taxes, Mr. Jones absolutely flips his wig. Stop whistling. You're going to make me flip my lid.