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.
Josh: Looks like you got a thigh baby, that sucks.
by Justin1261 May 26, 2008
Pericles: So I heard you got his big donny last night. I told you it was a baby arm!
Carin: You weren't kidding that his cock is huge! You should know, though, that it is really a baby thigh. I think I might be permanently stretched out and need a daddy stitch. AND I had to stretch my mouth so wide to give him a bj that my jaw now pops.
Carin: You weren't kidding that his cock is huge! You should know, though, that it is really a baby thigh. I think I might be permanently stretched out and need a daddy stitch. AND I had to stretch my mouth so wide to give him a bj that my jaw now pops.
by KarBare March 12, 2010