muscleman
     n 1: a bully employed as a thug or bodyguard; "the druglord had
          his muscleman to protect him" [syn: {muscle}]
     2: someone who does special exercises to develop a brawny
        musculature [syn: {bodybuilder}, {muscle builder}, {muscle-builder},
         {musclebuilder}]
Source: WordNet® 2.0