noun A floating object attached to the end of a harpoon line to slow a whale down and prevent it from diving.
noun A type of bag pulled behind a boat to stop it from broaching to.
noun A conical parachute used as a brake for some kinds of aircraft, or as a means of extracting and deploying a larger parachute, or to slow a rapidly-moving vehicle to a speed where it can safely deploy a larger parachute.
noun A conical basket or device used variously as a target for gunnery practice, and as a docking point for aerial refuelling.
noun A wind cone.
verb To harpoon or spear (a whale) with a weapon that has a drogue attached.
verb To use a drogue with.
verb To act as a drogue, slowing down and stabilizing a drifting object.