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1.
When a drunk chick is giving you a blow job and passes out before the job is done. You finish up and bust on the bitch's butt.
"Yo did you slasterbutt that girl on my bed last night?"

"yeah"

"gross."
by Will Rocks! January 19, 2006

Words related to Slasterbutt

blowjob chick drunk jizz the houdini