Keelhauling
Worse, perhaps than being marooned, the torturous death brought about by Keelhauling was a fate no pirate wanted to experience. A rope was tied beneath the belly of the ship and the offending pirate would be tied to the rope and hauled underwater, dragging underneath the pirate ship. The ship’s hull, covered in sharp barnacles, would cut like razors making for a very slow and painful death.