The Cosby KO Share definition Flag When you get a girl a drink that makes her fall asleep with her mouth open. Jason: I gave Nicole The Cosby KO. Me: Giggity. The Cosby KO by YO YO YOOOOOOOOOOOOOOOOO September 18, 2019 0 0 Get merch Get the The Cosby KO mug. Buy Now — $32.95 See more merch