shatbag Share definition Flag A bag of shat (a.k.a. shit). Often used in a derogatory sense. From the youtube video, Shoes: "Ima batchslap ya, ya shatbag!" shatbag by Kalynis1337 May 4, 2007 0 0 Get merch Get the shatbag mug. Buy Now — $32.95 See more merch