Groin Tash Share definition Flag Alternative phrase for the female vagina or gash. When a lady's pubic hair looks like a moustache. I need to wax my groin tash before I go on holiday.... Groin Tash by Dirty JD October 12, 2015 0 0 Get merch Get the Groin Tash mug. Buy Now — $32.95 See more merch