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1 definition by Hepcat John

 
1.
Short for "uterus nigger", a term commonly used in cyberpunk settings where artificially-grown humans, or 'test tube babies' are more common than natural-born humans. A derisive term for a natural-born person, or, a "uterus-born" person.

Artificially-grown humans are genetically perfect to a degree a natural-born person could never be, and so they view themselves as naturally superior to the "uteronigs".
Fuck off, uteronig, this bar is for perfects only.
by Hepcat John August 05, 2009