pop one's cork

verb pops one's cork · popping one's cork · popped one's cork

1. idiomatic, informal To become explosively angry. They even decided to give him something they never gave Burton: an honorary Oscar. When O'Toole got wind of it, though, he popped his cork like a bottle of bubbly, and, at age 70, reminded the academy that he was "still in the game and might win the lovely bugger outright."
2. idiomatic, informal To suddenly behave irrationally; to go crazy. And there was Conductor Reyes, who was perfectly ordinary until one day he popped his cork and started explaining delays by announcing Command Center's telephone number and urging riders to phone for themselves.
3. idiomatic, slang, vulgar Of a man, to ejaculate. [S]he had given him a perfunctory jerkoff, not even taking his dick out of his pants, laughing as he popped his cork within moments.

   Similar: blow one's cork, blow one's stack, blow one's top, go ape, go apeshit, hit the roof, hit the ceiling, lose it, lose one's rag, lose one's temper