Abbr. for 'stupid idiot'
by Nige Menzel June 11, 2007

Abbr. for "self-injury," also known as self-mutilation. Most common form is cutting, but may also include burning, bruising, skin-picking (excoriation), and other behaviors. There is no single cause for SI. SI is most common in women and tends to persist for years.
by rieux November 27, 2003

by Injuried November 08, 2010

by Dj gs68 September 22, 2003

by jake lowe February 11, 2008

Sisteme Internacional
by AnActualDefinition March 12, 2018
