Naw Dude Share definition Flag Something you say to someone while you shake your head with an inexpressive look on your face. Guy 1: "So, is it okay if I use your toothbrush?" Guy 2: "Naw dude..." Naw Dude by lgleopard February 17, 2010 0 0 Get merch Get the Naw Dude mug. Buy Now — $32.95 See more merch