1 definition by Terry Logan

Top Definition
The act of blowing your load all over a girl's face and smearing it across the top of her upper lip in the form of a mustache.
Lenny: Dude, you never showed last night, where were you?

Byron: After we left the party, I went over to your sister's house and gave her a bust-stache!
by Terry Logan September 13, 2006

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