Octo-moose Share definition Flag A moose with four legs and four arms. Often found in the deepest woods of Alaska. "Look", said Hamish, "There's an Octo-moose over there!" Octo-moose by Hamish and Sean April 25, 2006 0 0 Get merch Get the Octo-moose mug. Buy Now — $32.95 See more merch