Fishtangle Share definition Flag A two dementional shape composed of a sideways triangle and water droplet shape to form the simple outline of a fish. "What did you learn in geometry today?" "We learnt how many sides a fishtangle has." Fishtangle by rhys rohypnol July 28, 2009 0 0 Get merch Get the Fishtangle mug. Buy Now — $32.95 See more merch