hammerling Share definition Flag A sock, preferably a tube sock, that is half-filled with cat shit. Often used to hit a person or throw at a desired target. Ryan: Why do you need my cat? Paul: I think I can hit that old lady with a hammerling. hammerling by Ben Walkingstick October 9, 2006 0 0 Get merch Get the hammerling mug. Buy Now — $32.95 See more merch