Top Definition
A "Thigh Baby" acures when a male "pulls out" before ejaculating and the "left-overs" get on her thigh. Then by accident, or on purpose, some sperm gets into the vaginal area. Affect of this being a baby. This also explains that some virgins can get pregnant, if under the right curcumstances.
Brad: I don't know what happended, I pulled out but she still got pregnent.
Josh: Looks like you got a thigh baby, that sucks.
by Justin1261 May 26, 2008

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