Nard Cosh Share definition Flag A poo in a stocking. The sound of it hitting someone is similar to it's name. Gibo hit his junky neighbour with a nard cosh to settle a vendetta. Coshhhhh! Nard Cosh by Jocko Farin August 21, 2007 0 0 Get merch Get the Nard Cosh mug. Buy Now — $32.95 See more merch