Source : Webster's Revised Unabridged Dictionary (1913)

Foxy \Fox"y\, a.
   1. Like or pertaining to the fox; foxlike in disposition or
      looks; wily.

            Modred's narrow, foxy face.           --Tennyson.

   2. Having the color of a fox; of a yellowish or reddish brown
      color; -- applied sometimes to paintings when they have
      too much of this color.

   3. Having the odor of a fox; rank; strong smeelling.

   4. Sour; unpleasant in taste; -- said of wine, beer, etc.,
      not properly fermented; -- also of grapes which have the
      coarse flavor of the fox grape.

Source : WordNet®

foxy
     adj : marked by skill in deception; "cunning men often pass for
           wise"; "deep political machinations"; "a foxy scheme";
           "a slick evasive answer"; "sly as a fox"; "tricky Dik";
           "a wily old attorney" [syn: {crafty}, {cunning}, {dodgy},
            {guileful}, {knavish}, {slick}, {sly}, {tricksy}, {tricky},
            {wily}]
     [also: {foxiest}, {foxier}]