cumthirsty Share definition Flag A state of being where an individual wants to have someone nut down their throat. Every time Kevin gets high on crack, he gets all horned up and starts asking dudes if he can blow them. What a cumthirsty queer. cumthirsty by new haven October 15, 2009 0 0 Get merch Get the cumthirsty mug. Buy Now — $32.95 See more merch