quosh Share definition Flag When something goes crazy, or is rabid, and attacks you. (Quashen, a similar word, means to smash or to break) Jawdan: What happened to your face?! Mikeielle: I was quoshed by a penguin! quosh by Gordon Milk September 8, 2009 0 0 Get merch Get the quosh mug. Buy Now — $32.95 See more merch