inic Share definition Flag inic an old cavan slang with two meanings.1.fags or cigerettes.2.when adding an s at the end it means tits or boobs well mary have ya a spare inic on ya? boy to boy,look at the size of the inics on her" inic by bisto November 7, 2007 0 0 Get merch Get the inic mug. Buy Now — $32.95 See more merch