Originally derived from kk, the shortened version of the abbreviation Ok, and Ok was shortened from the word Okay, which was shortened from Ol' Korrect. Being called Kake occurs from slight resemblance in sound of saying Kk normally as in conversation, through text messaging or in person, at a later point was altered to become the actual word, Kake. Occasionally replaces the word Cake. Another use is to ignore someone but still say something to get them off your back.
Kevin: Hey, don't turn on the TV yet, it's still busted.