Slaykay Share definition Flag A combination of "okay slay" into one word. Meaning "okay sweet/cool." "You down for a movie later? "Sure, let's go around 11." "Slaykay" Slaykay by Taekwondo9 May 14, 2016 0 0 Get merch Get the Slaykay mug. Buy Now — $32.95 See more merch