cKsK Share definition Flag cKsK comes from the two abbreviations for Calvin Klein (cK) and Sick Kunt (sk). This could mean you are wearing any item that is Calvin Klein branded. Oh fuck me cunt she's a fucking cksk with those phat jeans!! cKsK by CloutRice November 6, 2018 0 0 Get merch Get the cKsK mug. Buy Now — $32.95 See more merch