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A phrase used to show support for a African American. Generally this phrase is used to show support of a black person largely based upon his or her race, but not always. This phrase is often used to show support of the first black president of the United States, Barack Obama, and his policy of "Change."
Me: Obama is gunna change everything!
Josh: Yeah we gotta Black Him Up! Gotta get my vote in!
by barnaclebill3482 January 12, 2011
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