Poon Waster Share definition Flag A guy who doesn't hook up with a girl that he has been flirting with and sitting with at a party or get together, thus wasting poon. Brandon, are you gonna hook up with that chick already, you're being such a poon waster. Poon Waster by Dino Susan April 20, 2009 0 0 Get merch Get the Poon Waster mug. Buy Now — $32.95 See more merch