Moiska Share definition Flag A guy called Otto who thinks he is a butterfly, but looks like a walrus.He's always doing stupid things and bullying Emuli. WTF is Otto doing!? Nah, he's just being a Moiska. Moiska by OlliPolli June 3, 2018 0 0 Get merch Get the Moiska mug. Buy Now — $32.95 See more merch