1 definition by TheNightHawk69
When a guy ejaculates onto his stomach and the jizz slides down and wells in his belly button. Hence, gene "pool".
Guy 1: Dude, today I jerked it onto my chest and my jizz filled up my belly button!
Guy 2: I wish I could gene pool, but I have an inward belly button :/
Guy 2: I wish I could gene pool, but I have an inward belly button :/
by TheNightHawk69 January 30, 2009