DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   MP
       n 1: a member of the military police who polices soldiers and
            guards prisoners [syn: military policeman, MP]
       2: a military corps that enforces discipline and guards
          prisoners [syn: military police, MP]