abreviation for "
Schutzstaffel".
Schutz meaing "Defense" in German, and
Staffel meaning "Echelon" in German. The Schutzstaffel was an elite quasi-military unit of the Nazi party that served as Hitler's personal guard and as a special security force in Germany and the occupied countries.
Insipid neo-nazis, who are ignorant of history, often write "
SS" on walls and other objects as graffiti.