asshole

asshole
    n 1: insulting terms of address for people who are stupid or
         irritating or ridiculous [syn: {asshole}, {bastard},
         {cocksucker}, {dickhead}, {shit}, {mother fucker},
         {motherfucker}, {prick}, {whoreson}, {son of a bitch},
         {SOB}]
    2: vulgar slang for anus [syn: {arse}, {arsehole}, {asshole},
       {bunghole}]
    

20 Moby Thesaurus words for "asshole":
      anus, boob, booby, bung, bunghole, chump, ding-a-ling, dingbat,
      dingdong, galoot, goof, jerk, jerk-off, klutz, mutt, prize sap,
      sap, saphead, sawney, schlemiel