boot nut Share definition Flag (n.) Any ghetto-bound brown individual generally identifiable by classic behaviors indicative of the breed. "Ya boot; ya nut; ya boot nut..." "That fucking boot nut can drain a 40 in ten seconds flat..." boot nut by Jake Yell May 9, 2008 0 0 Get merch Get the boot nut mug. Buy Now — $32.95 See more merch