Kariwack Share definition Flag To go nuts, or insane. To destroy and conquer everyone. To flip out on and destroy. To kick someone's ass. My room mates pissed me off, so I went back into their room and went kariwack on their asses! Kariwack by Kastl11 March 30, 2009 0 0 Get merch Get the Kariwack mug. Buy Now — $32.95 See more merch