Top Definition
An elaborate tattoo of a butterfly on an individual’s taint. Unisex in nature, but more mythical on a gentleman. Generally the result of very poor decision making and copious amounts of booze. Traditionally the recipient of a "taintfly" is involved in some sort of bet or dare.
Bro, did homeboy tell you about his taintfly?
No, WTF?
The dude was offered $1K to get a tattoo of a Butterfly on his taint and he did it! His taint is the main body of the Butterfly and the wings spread across his thighs. It is god awful!
Wow! Hope he won the bet!
by GilltronZERO November 16, 2010

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