cha-cak Share definition Flag Ca-ca, crap, bullshit, poo––particularly of intellectual, verbal, or emotional variety. Hey Roy! Quit talking all that cha-cak, would you? You're giving me a brain pain. cha-cak by escuchon May 14, 2008 0 0 Get merch Get the cha-cak mug. Buy Now — $32.95 See more merch