0ctag0n Share definition Flag A word used for when someone is being a total octagon head Person 1: 70mph isn't funny Person 2: Dude shut up you're an 0ctag0n 0ctag0n by Ant9077 December 17, 2020 0 0 Get merch Get the 0ctag0n mug. Buy Now — $32.95 See more merch