Source : WordNet®

asshole
     n 1: insulting terms of address for people who are stupid or
          irritating or ridiculous [syn: {bastard}, {cocksucker},
          {dickhead}, {shit}, {mother fucker}, {motherfucker}, {prick},
           {whoreson}, {son of a bitch}, {SOB}]
     2: excretory opening at the end of the alimentary canal [syn: {anus},
         {arse}, {arsehole}]