Dirty Gerstein Share definition Flag having sex with a gentile girl (shiksa) and then slapping her ass with your yarmulke (yah-mah-kee) That Catholic whore wouldn't shut up so my Rabbi gave her a Dirty Gerstein Dirty Gerstein by mrgarcia0001 October 11, 2008 0 0 Get merch Get the Dirty Gerstein mug. Buy Now — $32.95 See more merch