Duey Button Share definition Flag a Duey Button is when you lick your finger tips and slap someone on the forehead. -when someone is pissing you off lick your fingers and slap them on the forehaed and say Duey Button!- Duey Button by Slippy Something? April 16, 2009 0 0 Get merch Get the Duey Button mug. Buy Now — $32.95 See more merch