Knostman Share definition Flag A last name that is kind of sucky for how uncommon it is. “Your last name is Knostman, how pathetic”. “Well at least my last name isn’t Smith or Johnson” Knostman by Yeetbot Kamikaze November 3, 2018 0 0 Get merch Get the Knostman mug. Buy Now — $32.95 See more merch