And my bitch white but my cock black

from A$AP Rocky (Ft. ScHoolboy Q) – PMW (All I Really Need) Lyrics on Rap Genius

Meaning

This line is read by some people as a nod to rapper Iggy Azalea, who Rocky, despite his public denials, is often rumored to be dating

But, of course, it could just mean that he prefers white bitches.

He could also be talking about Kathy Griffin right here.

http://youtu.be/5A3L433GAgE?t=1m6s

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