crustacious Share definition Flag (adj) A term used to describe something that is displeasing to the senses. Jack stuffed a dozen oysters up his Granny's cunt and sucked out 13... how CRUSTACIOUS! crustacious by ALTOIDZboi April 2, 2004 0 0 Get merch Get the crustacious mug. Buy Now — $32.95 See more merch