Tarpaulin

Webster's Dictionary of the English Language

·noun Hence, a sailor; a seaman; a tar.

II. Tarpaulin ·noun A hat made of, or covered with, painted or tarred cloth, worn by sailors and others.

III. Tarpaulin ·noun A piece of canvas covered with tar or a waterproof composition, used for covering the hatches of a ship, hammocks, boats, ·etc.