Cron-jawn Share definition Flag Slang term for the common rec. Drug marijuana. Yo man, me and some " buds" are going to smoke some o' that cron-jawn...you in? Cron-jawn by Xlax922 August 9, 2009 0 0 Get merch Get the Cron-jawn mug. Buy Now — $32.95 See more merch