The act of being a worthless, annoying, prick who is slightly nerdy and/or dorkish.
Dude1: Hey man did you hear that jacob is dating Katy.

Dude2: Yeah he's a Nipple Fart
by someone7877 January 30, 2011
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when your nipple produces a high pitched , highly embarrasing squeak
oh shit! a nipple fart right in public , OH GOD STOP STARING AT ME!
by Morkman29 April 11, 2006
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Last night Trisha let me do a nipple fart on her! It was so hot I almost splooged myself!
by spanishclass1 December 9, 2017
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