nushnush Share definition Flag 1. To touch a cat's nose twice. See nush 2. A nickname for a particular cat. Aw, look at Nushnush, I want to nush her little nose. nushnush by El Noso Blanco October 28, 2006 0 0 Get merch Get the nushnush mug. Buy Now — $32.95 See more merch