di-nastiest Share definition Flag Something or someone that is so nasty that the nasty has to be double to two nasties. Man... you are DI-nastiest, but you're better than that man over there, he be tetra-nastiest di-nastiest by BIG FABE! July 30, 2004 0 0 Get merch Get the di-nastiest mug. Buy Now — $32.95 See more merch