Top Definition
during sexual intercourse, the male penis suddenly goes flat at an alarming rate before reaching the climax of intercourse, thus making the female unsatisfied, usually but not limited to a "what the fuck was that, you erectly dysfunctional quylthulg(pulsation flesh mound)???"
man1: dude, i heard man3 had snowman sex!
man2: no friggin way! he always talks a big game!
man3:dude, im right here.
by Andrew Mac-Daddy July 27, 2009

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