The Collaborative International Dictionary of English v.0.48:

Whittle \Whit"tle\, v. t. [imp. & p. p. Whittled; p. pr. & vb.
   n. Whittling.]
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   1. To pare or cut off the surface of with a small knife; to
      cut or shape, as a piece of wood held in the hand, with a
      clasp knife or pocketknife.
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   2. To edge; to sharpen; to render eager or excited; esp., to
      excite with liquor; to inebriate. [Obs.]
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            "In vino veritas." When men are well whittled, their
            tongues run at random.                --Withals.
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