Source : Webster's Revised Unabridged Dictionary (1913)

Spooney \Spoon"ey\, a.
   Weak-minded; demonstratively fond; as, spooney lovers. [Spelt
   also {spoony.}] [Colloq.]

Spooney \Spoon"ey\, n.; pl. {Spooneye}.
   A weak-minded or silly person; one who is foolishly fond.
   [Colloq.]

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