Definition of spoony:
(adj) :
Enamored in a silly or sentimental way; having a crush (on someone).
(n) :
(informal) A foolishly amorous person.
(adj) :
Feebly sentimental; gushy.
(n) :
(informal) A foolish, simple, or silly person.
(adj) :
Similar to a spoon.
(n) :
(slang) Alternative form of spoonie (“person with chronic illness or disability”). [A northern shoveler (Spatula clypeata, formerly Anas clypeata).]