FUCKINFUCKSHIT Share definition Flag An expression when showing extreme anger. i.e. Someone stubs thier toe then screams "FUCKINFUCKSHIT you stupid goddamn table!" FUCKINFUCKSHIT by fuckin jAMES d April 10, 2008 0 0 Get merch Get the FUCKINFUCKSHIT mug. Buy Now — $32.95 See more merch