crumice Share definition Flag CRUMICE (crum-iss) (n/insult) - a crusty person with split ends and hot breath. I don't wanna be next to that crumiceThat crumice is not my friend crumice by harpsgal July 5, 2018 0 0 Get merch Get the crumice mug. Buy Now — $32.95 See more merch