The Gullwhacker was a piece of knotted rope used by Mariel Gullwhacker as a weapon. Gabool the Wild bound Mariel to a piece of wood with this rope before throwing her in the ocean. When she awoke on the beach at the edge of Toadlands, Mariel used this rope to chase away gulls who attacked her, thus giving the weapon its peculiar name. On further adventures, Mariel devised similar knotted ropes with the same purpose as the Gullwhacker. A gullwhacker could then be any length of rope tied with complex knots designed to make it into a weapon.