Kozinko Share definition Flag Adv. An onomatopoeia associated with pulling one's penis out in an inappropriate situation. "They were making out in the stair-well when all of a sudden he just whipped it out, 'Kozinko!'" Kozinko by SwampDonkey117 January 1, 2012 0 0 Get merch Get the Kozinko mug. Buy Now — $32.95 See more merch