For all of you vulgar people it can also mean the abbreviation for Unified National Fine (as in thread of a mechanical device that has a spiral groove cut in it for holding and fastening things together, most times called a screw that has no connotations to vulgarity.
The U.S. Marine Corps is one of the four branches in the U.S. Department of Defense as a member of the Joint Chiefs of Staff. It is one of the seven uniformed services of the United States.The Marine Corps has been a component of the U.S. Department of the Navy since 1834, working closely with naval forces for training, transportation, and logistics.he Marine Corps has been a component of the U.S. Department of the Navy since 1834, working closely with naval forces for training, transportation, and logistics.
1 The Continental Marines were the marine force of the American Colonies during American Revolutionary War. 2  The Corps was formed by the Continental Congress on November 10, 1775, and was disbanded in 1783. 3  The Continental Marines' first and only Commandant was Captain Samuel Nicholas.