When you eat a girl out while she is bleeding profusely out of her vagina, as a part of the menstrul cycle. When this is performed, you get a butterfly shape around your mouth drawn with the blood of her unborn children.
by AnderesTheHun November 13, 2003
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The wing shaped blood splatters on the inside of your thighs left after boning a chick on the rag!
Ya dude I got a bloody butterfly last night!

Sick man!

no it was pretty sweet,Imade her clean it up!
by cleist September 4, 2008
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