1 definition by angryKarl

Top Definition
An acronym or an abbreviation for "unsatisfactory" made popular by the military, police officers, SPECOPS warriors, Sergeants, Range instructers, S.R.O.s, Krav Maga instructors & E.R.T. personnel the world over
The sergeant explained to the staff how the holster the new guy bought was unsat
by angryKarl February 14, 2011
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