The DICT Development Group

  sledgehammer
      n 1: a heavy long-handled hammer used to drive stakes or wedges
           [syn: maul, sledge, sledgehammer]
      v 1: beat with a sledgehammer [syn: sledgehammer, sledge]

  33 Moby Thesaurus words for "sledgehammer":
     bang, baste, batter, beat, buffet, bulldozer, coercive, drub,
     flail, flap, forcible, hammer, knock, lambaste, larrup, maul,
     paste, patter, pelt, pommel, pound, pulverize, pummel, rap, spank,
     steamroller, strong-arm, thrash, thresh, thump, violent, wallop,
     whip