Stands for Staff Sergeant.

Staff Sergeant is a rank of non-commissioned officer used in several countries.

The origin of the name is that they were part of the staff of a British army regiment and paid at that level rather than as a member of a battalion or company.

Staff Sergeant (SSG) is E-6 rank in the U.S. Army, just above Sergeant and below Sergeant First Class, and is a non-commissioned officer. Staff Sergeants are generally placed in charge of squads

Staff Sergeant (SSgt) is E-6 rank in the U.S. Marine Corps, just above Sergeant and below Gunnery Sergeant. A Marine staff sergeant is a staff non-commissioned officer rank.

Staff Sergeant (SSgt) is E-5 in the United States Air Force (U.S. Air Force). It ranks just above Senior Airman (SrA) and below Technical Sergeant (TSgt). It is the Air Force's first non-commissioned officer (NCO) rank, as well as the first Air Force rank to which promotion is attained on a competitive basis. SrA are considered for promotion if they attain that rank on or before February 1 of that testing year
Guy 1: "A Recruiter for the united states Airforce may be a Staff Sergeant, right?"

Guy 2: " Yeah, he's an Ssgt."
by sunshinesama March 16, 2011
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shorter version of Staff Sargeant

a retard in the US Marines that takes their job WAY too seriously and needs a life.
by [headows] May 16, 2003
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