Crotchin it Share definition Flag The act of grinding on a girl while holding her crotch therefor, your just crotchin it. Damn, you see Luke over there crotchin it with Jhom? Crotchin it by poop69face69696 October 14, 2009 0 0 Get merch Get the Crotchin it mug. Buy Now — $32.95 See more merch