Top Definition
1) An insult used commonly behind someones back to describe them as a person.
2) An insult used in a heated debate
1) "Dude, Troy is an ass fister."
Man 1: "your mom"
Man 2: "yeah, great comeback ass fister"
by JNEWME July 21, 2005
Cpl Gerard
Gerard is an assfister
by 163 line June 29, 2004
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