Source : Webster's Revised Unabridged Dictionary (1913)

Catchy \Catch"y\, a.
   1. Apt or tending to catch the fancy or attention; catching;
      taking; as, catchy music.

   2. Tending to catch or insnare; entangling; -- usually used
      fig.; as, a catchy question.

   3. Consisting of, or occuring in, disconnected parts or
      snatches; changeable; as, a catchy wind.

            It [the fox's scent] is . . . flighty or catchy, if
            variable.                             --Encyc. of
                                                  Sport.

Source : WordNet®

catchy
     adj 1: having concealed difficulty; "a catchy question"; "a tricky
            recipe to follow" [syn: {tricky}]
     2: likely to attract attention; "a catchy title for a movie"
        [syn: {attention-getting}]
     [also: {catchiest}, {catchier}]