Black Dick
An exclamation used by women (generally caucasian) to imply a sense of triumph or one-upwomanship over others. Its origin evolved out of the sense of having bested one's peers that most females feel once they've intiated a relationship with a black male possessing superior genitalia. It is now used generically in reference to any situation where they have surpassed or out-performed other women in some way.
Example:
#1
Jacky: OMG Linda, did you get breast implants too?
Linda: Ya, I figured if I was going to go through with it, I might as well go big, so I got me some D cups.
Jacky: Wow, I just went from an A to a C. Damn!
Linda: Black dick, bitch!
#2
Jane: I can't believe Jacky and Linda both got implants in the same week.
Sandy: Ya isn't it crazy? Jacky was devastated when she found out Linda had gotten D cups.
Jane: Yep, Linda totally black dicked her.
#1
Jacky: OMG Linda, did you get breast implants too?
Linda: Ya, I figured if I was going to go through with it, I might as well go big, so I got me some D cups.
Jacky: Wow, I just went from an A to a C. Damn!
Linda: Black dick, bitch!
#2
Jane: I can't believe Jacky and Linda both got implants in the same week.
Sandy: Ya isn't it crazy? Jacky was devastated when she found out Linda had gotten D cups.
Jane: Yep, Linda totally black dicked her.