named after a video game but now it is a term used when your dick is being bitten really hard by your girl friend
Jenna: Oh, yea you like that you bad boy.
Me: No! NO! JENNA! BLACK COCK DOWN! BLACK COCK DOWN!
Jenna: Oh, sorry.
Me: No! NO! JENNA! BLACK COCK DOWN! BLACK COCK DOWN!
Jenna: Oh, sorry.
by Blackman231 August 23, 2008