bag on that Share definition Flag Commonly used by youth to express displeasure at something or someone, esp. with regards to work or a duty of some kind. "The teacher assigned homework again today." "Bag on that!" "Fo shizzle my nizzle." bag on that by Steve Winterburn October 4, 2004 0 0 Get merch Get the bag on that mug. Buy Now — $32.95 See more merch