Kojaksack Share definition Flag a bald nut sack, hairless scrotum, silky ball bag. I shaved my nuts to make shit look bigger, but she said "damn thats one ugly kojaksack", who loves you baby, not me! Kojaksack by Tit's Mcgee January 29, 2009 0 0 Get merch Get the Kojaksack mug. Buy Now — $32.95 See more merch