A name for biracial people typically half white and half black other racial people maybe included but has to be half white. (Not intended to be racist but funny)
when railing a girl, that does not whipe her ass good, your balls slap against her pooper causing them to get shit on them. thus resulting in shit stained balls
i was pounding the shit outa sussy smelly crotch so hard last night that my balls were slapping against her butthole. man talk about a bad case of the shit stained balls.