Top Definition
Guy is required to insert penis between girls legs as she flaps them together violently, as it beats the hell out of the mans weiner, and by chance causinghim to sperm on her chesticles, and have her yell, "The Flapping Butterfly!"
I think i broke the tip of my weiner off, executing the flapping butterfly.
#violent #penis #harcore #crx #chode monger
by poo inator February 01, 2006
5 Words related to the flapping butterfly
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