nanakoko Share definition Flag the act of sleep or going to bed specially after a party or at pretentious times but could be any time. i’m nanakoko could also mean i’m sleepy/ relaxed -4pm- dude1: omg im so tired i need to go nanakoko dude2: i love nanakoko nanakoko by nanakoko August 2, 2022 0 0 Get merch Get the nanakoko mug. Buy Now — $32.95 See more merch