Goat's Vagina Share definition Flag An open cut that generally happens in combat sports which a fighter receives. Usually by an elbow or punch to the head "That Marvin Eastman one was a goat's vagina" -Joe Rogan Goat's Vagina by Pizzagoat July 8, 2010 0 0 Get merch Get the Goat's Vagina mug. Buy Now — $32.95 See more merch