lummox

from WordNet (r) 3.0 (2006)

lummox
    n 1: an awkward stupid person [syn: {lout}, {clod},
         {stumblebum}, {goon}, {oaf}, {lubber}, {lummox}, {lump},
         {gawk}]

from The Collaborative International Dictionary of English v.0.48

Lummox \Lum"mox\, n.
   A fat, ungainly, stupid person; an awkward bungler. [Low.]
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

34 Moby Thesaurus words for "lummox":
      boor, bumpkin, butterfingers, clod, clodhopper, clumsy, dub,
      duffer, foozler, foul-up, fumble-fist, gawk, gawky, goof, goofball,
      goofer, hayseed, hick, klutz, lobster, looby, lout, lubber, lug,
      lump, muff, muffer, oaf, palooka, rube, slob, stumblebum,
      stumblebunny, yokel

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