shalln'tevenknow Share definition Flag A slurred phrase of "Shit, I don't even know what the hell you are talking about!" Person 1:Dude, that Wild Tazmainian Grundle just at my dog! Person 2:Shalln'tevenknow! shalln'tevenknow by black ass February 26, 2003 0 0 Get merch Get the shalln'tevenknow mug. Buy Now — $32.95 See more merch
