impenetrable fortress Share definition Flag A woman, or man, who is so 'untouchable' that she seems to be an impenetrable fortress. Ryan: Damn, see that impenetrable fortress over there? Andrew: Ouff man, you don't stand a chance. impenetrable fortress by Kldcs Nerd November 26, 2009 0 0 Get merch Get the impenetrable fortress mug. Buy Now — $32.95 See more merch
