Firebenders Share definition Flag A dude's balls. Used as a more "unique" way of saying testicles/balls/nuts. Guy 1: Dude! A guy pantsed Finn and exposed his "firebenders!"Guy 2: Tf are "firebenders?" Firebenders by Catoboy November 5, 2023 0 0 Get merch Get the Firebenders mug. Buy Now — $32.95 See more merch