Smash Rag Share definition Flag A towl, t-shirt, sock etc that is stored in arms reach of the place a man masturbates or regularly has sex etc. A smash rag should not be washed very often. 'Oh honey ive got jiz in my belly button. Can you please fetch me the smash rag?' Smash Rag by Cato84 February 11, 2010 0 0 Get merch Get the Smash Rag mug. Buy Now — $32.95 See more merch