Stang-finger Share definition Flag A phrase, usually described in terms of a game, which denotes the action of manually probing the tailpipe of a mustang. Dude#1 "hey dude see that mustang parked over there?, I gave it stang-finger!"Dude#2"Nice!" Stang-finger by Itsaverynice! May 13, 2011 0 0 Get merch Get the Stang-finger mug. Buy Now — $32.95 See more merch