The Collaborative International Dictionary of English v.0.48:

Spooney \Spoon"ey\, n.; pl. Spooneys (-[i^]z).
   A weak-minded or silly person; one who is foolishly fond.
   [Colloq.]
   [1913 Webster]

         There is no doubt, whatever, that I was a lackadaisical
         young spooney.                           --Dickens.
   [1913 Webster]