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1.
Just like the boogy man, the big black penis is something we're all scared of, even if it's really not out there.
Mommy! There's a big black penis hiding in my closet!

Calm down Timmy, thats just a normal black penis hiding in your closet.
by FuryFrenzy November 13, 2007
 
2.
A Popular Advertising Slogan
"Nothing's quicker than a Big Black Penis"
by Shaniqua January 23, 2003
 
3.
The penis of a black person usually 10 inches long.
Girl: hey did you see jamal's dick ?!
Girl2: yea dayumm dat guy has a big black penis.
by yomanniggerdick May 23, 2010