The act of diving face first into your girlfriends ass without knowing moments earlier she ripped the meanest fart.
Johnny went to get a his shoes on, but when he looked back he noticed his girlfriend Katie laying on his bed ass up. Johnny dove face first into her ass crack and she said "No babe, I just farted a minute ago". Johnny went into the bathroom and continuously washed his lips because he had a very dirty Ass Stache
by TheAssStacher February 16, 2014
by bitch basket fagola January 31, 2010
When a male (or woman) eats the ass of their partner and develops a visual ring around their mouth. Occasionally the visual Ass-Stache can be accompanied by a foul scent and may persist for days. There is no known antidote or medical treatment. Victims are advised to scrub affected area with equal parts bleach, water and 3 day old lime rinds.
by Three Dollar William August 5, 2023