The Collaborative International Dictionary of English v.0.48:

Clod \Clod\ (kl[o^]d), v. i.
   To collect into clods, or into a thick mass; to coagulate; to
   clot; as, clodded gore. See Clot.
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         Clodded in lumps of clay.                --G. Fletcher.
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The Collaborative International Dictionary of English v.0.48:

Clod \Clod\, v. t.
   1. To pelt with clods. --Jonson.
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   2. To throw violently; to hurl. [Scot.] --Sir W. Scott.
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The Collaborative International Dictionary of English v.0.48:

Clod \Clod\ (kl[o^]d), n. [OE. clodde, latter form of clot. See
   Clot.]
   1. A lump or mass, especially of earth, turf, or clay. "Clods
      of a slimy substance." --Carew. "Clods of iron and brass."
      --Milton. "Clods of blood." --E. Fairfax.
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            The earth that casteth up from the plow a great
            clod, is not so good as that which casteth up a
            smaller clod.                         --Bacon.
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   2. The ground; the earth; a spot of earth or turf.
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            The clod
            Where once their sultan's horse has trod. --Swift.
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   3. That which is earthy and of little relative value, as the
      body of man in comparison with the soul.
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            This cold clod of clay which we carry about with us.
                                                  --T. Burnet.
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   4. A dull, gross, stupid fellow; a dolt --Dryden.
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   5. A part of the shoulder of a beef creature, or of the neck
      piece near the shoulder. See Illust. of Beef.
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WordNet (r) 3.0 (2006):

clod
    n 1: a compact mass; "a ball of mud caught him on the shoulder"
         [syn: ball, clod, glob, lump, clump, chunk]
    2: an awkward stupid person [syn: lout, clod, stumblebum,
       goon, oaf, lubber, lummox, lump, gawk]