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
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" What is the definition of "bust-stache"?