sucka stab Share definition Flag to stab someone who is unaware. similar to a sucker punch only with a knife and in a mr. T voice. bob: "dude bill is a prick." john: "don't worry i'm gonna sucka stab his ass." sucka stab by Noelson November 13, 2005 0 0 Get merch Get the sucka stab mug. Buy Now — $32.95 See more merch