[1] : The Collaborative International Dictionary of English v.0.48

shell \shell\, v. t. imp.  p. p. shelled; p. pr.  vb. n.
   shelling.
   1. to strip or break off the shell of; to take out of the
      shell, pod, etc.; as, to shell nuts or pease; to shell
      oysters.
      1913 webster

   2. to separate the kernels of an ear of indian corn, wheat,
      oats, etc. from the cob, ear, or husk.
      1913 webster

   3. to throw shells or bombs upon or into; to bombard; as, to
      shell a town.
      1913 webster

   to shell out, to distribute freely; to bring out or pay, as
      money. colloq.
      1913 webster
see also:
shelled shelling to shell out 

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