The act of anally fornicating with a woman whilst she is in the process of giving birth, and then ejaculating on the newborn. This woman does not have to be your wife.
Guy #1: Hey man, I got to 103rd base last night!

Guy #2: Nice man!

Guy #1: I know, right? I'm being sent to prison, but I have pictures if you want some!

Guy #2: They gave you jail time? Is there even legislation on that?

Guy #1: Pretty sure I'm just about to get to 104th base.
by Dancup November 8, 2009
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