shwibby Share definition Flag Shitty marijuana. Bricked and full of seeds/stems and usually moldy. Brown in color, with faint smell of ammonia. Back in high school we smoked shwibby. shwibby by Emilo Estavez April 13, 2007 0 0 Get merch Get the shwibby mug. Buy Now — $32.95 See more merch