Black knees belong to women who meet random strangers in places of gathering (i.e. restaurant or nightclub) and proceed to give them blowjobs.
Jenny: She was blowing some dude in the bathroom at the club.
Mike: Explains why she in the club with a white dress and black knees.
Mike: Explains why she in the club with a white dress and black knees.
by naggernensky May 16, 2009

The characteristic discolouration of the patella of black women. The colour is literally black, in contrast to their skin pigmentation, which, as we all know, is actually brown.
by Aprileen Alexander October 25, 2006

To masturbate vigorously.
Friend 1 : "Hey, why weren't you out last night?"
Friend 2: "Sorry, I was slapping the Black Man's knee.
Friend 2: "Sorry, I was slapping the Black Man's knee.
by SwigglesMcGiggles April 07, 2015

by potato1109 February 03, 2025
