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1.
When hopelessly white people attempt to seem dope by interjecting out-of-date ebonics into everyday conversation, especially at the office or during bachelorette parties.
Overheard:
Cindy: "Holla bitches!"
Karen: "Fashizzle my nizzle"

Shauntavius: "Sigh."
Tyrell: "Look at those females, attempting to 'holla black'".
by bkn March 31, 2011
 
2.
Adj. Black, outspoken about it and proud.
1. We ain't hollaback, nigga we hollablack
2. Damn that mutha is so hollablack
by Denzal May 11, 2007