Top Definition
n. The friend one brings to a social function whose purpose it is to dissuade the unwanted sexual advances of a third party butterface one would prefer not to allow oneself to engage in sexual congress with.

n. A third wheel invited to put a damper on opportunistic, but regrettable, sex-having
Dude, that nasty slute Gretta wants to meet me at the rave, and if you're not there as my rapebuffer, I'll probably let her suck it.
by Gormugon May 21, 2013

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