1.横帆双桅船; 双桅方帆船
2.【海】〈俚〉舰上禁闭室; 舰上警卫室
3.〈俚〉监狱; 警察局
1.a two-masted sailing ship with square-rigged sails on both masts
2.[Navy]<slang>a secure area in a ship of the U.S. Navy, which can be used as a prison while the ship is at sea
3.<slang>a building or part of a building that is used as a prison in a U.S. military installation