Ball Sack Ninja Share definition Flag Type of ninja who use's the scrotum when fighting. Using the fighting style "sack-qwon-do". He just beat that guy down with his nuts! Damn, He's a real ball sack ninja. Ball Sack Ninja by benji64 January 29, 2009 0 0 Get merch Get the Ball Sack Ninja mug. Buy Now — $32.95 See more merch
