[Poon] [Goon] Share definition Flag Poon refers to Vagina Goon refers to australian slang for cheap wine Vagina Wine = Period "Hey Miss! you on your poon goon?!" when asking a woman if she is on her period [Poon] [Goon] by Pearce, Nick, Alex, Dovey January 13, 2009 0 0 Get merch Get the [Poon] [Goon] mug. Buy Now — $32.95 See more merch