thirsty mother fucker Share definition Flag any man who tries to hook up with any chick at a party Todd hit on everyone, even the ugliest and fattest of chicks at the party: he was a thirsty mother fucker. thirsty mother fucker by Bobby O. December 9, 2007 0 0 Get merch Get the thirsty mother fucker mug. Buy Now — $32.95 See more merch