A term usually used in leftist circles to derisively refer to someone who uses their misunderstood notions of human biology and/or evolutionary psychology to justify their heinous, ignorant, and/or bigoted views.
Women are naturally suited to raising children, so they should stay at home and not pursue a career. Wrap it up, it's a biotruth.
by imafuckshit June 22, 2011
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Person B: Yes it is!
Person B: You mean bitruthual?
Person A: That's not a word!
Person B: Yes it is!
by mr-madworld June 7, 2015
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