Top Definition
The unpleasant smell of butthole the permeates the air for mere seconds when a chick is on top, sometimes resulting in loss of erection.
"Ah, my girlfriend was boucing on my cock last night and I got a whiff o' anus, totally ruined my boner, does she wipe?"

"I refuse to let her ride the rod after she has a hearty meal, I always catch a whiff o' anus and can sometimes detect what she had for dinner."
by Squeaked Moose October 18, 2011

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