A girl or in some cases a guy that is not black but has sex with black men and is there for is considered "black" after having sexual relations with a black person. Depending on the black male(s) involved it could be one time with one black male or 20 plus times with a interracial gangbang.

Also after this happens the person could be consided to be black owned.
I am black by injection because i only have sex with black men and i have been gangbanged many times and black bred 3 times.
by tiff6969 March 10, 2010

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Top Definition
Non black person who is considered "black" after having sexual relations with a black person.
Since I am dating Jerome, I am black by injection.
by Dena Sablotny October 13, 2004

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