when a typically nice, friendly female has short, intense bursts of bitchy behavior
"What's wrong with Lisa?"

"I don't know. She's always in such a good mood but everytime I even look at her she has a cuntasm and turns into a bitch."
door Hoot Clark 2 december 2009
Cuntasm is an occurance when a female, or very feminine male, get's overly excited about a seemingly small, to the average person, disagreement.
"Damn bitch, calm the fuck down, don't have a damn cuntasm!"
door jamaal.a.manic 30 april 2009

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