Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Variant of spoony.
Century Dictionary and Cyclopedia
- n. See spoony.
Wiktionary
- adj. alternative spelling of spoony.
GNU Webster's 1913
- adj. Weak-minded; demonstratively fond.
- n. A weak-minded or silly person; one who is foolishly fond.
Examples
“Diogenes calls the spooney view of women, and only applicable to the young and handsome, -- a very small minority.”
“He had never been of the so-called "spooney" set at the 'Varsity.”
“But, while still within the "spooney" zone he knows no more than you or I (or that most important _she_) what the morrow means to bring.”
“He may have been only "spooney," but it was in a sense that left him no pretence for thinking that anything connected with this beautiful young widow-lady could be unimportant to him.”
“Their method was the marvel of the unimaginative Terrapin, who made some philosophic comments upon the "spooney" socially considered, and cut their acquaintance.”
“There is no doubt whatever that I was a lackadaisical young spooney; but there was a purity of heart in all this, that prevents my having quite a contemptuous recollection of it, let me laugh as I may.”
“Aussie: [with admiration] "I can see you've played knifey-spooney before.”
“This history has been written to very little purpose if the reader has not perceived that the Major was a spooney.”
“Pendennis, when the offer of the commission was acknowledged and refused, wrote back a curt and somewhat angry letter to the widow, and thought his nephew was rather a spooney.”
“‘I do so like Mr. Macassar, he is so spooney; pray go on, mamma.’”
Lists
‘spooney’ hasn't been added to any lists yet.

yarb "...a man likes to assure himself, and men of pleasure generally, what he could do in the way of mischief if he chose, and that if he abstains from making himself ill, or beggaring himself, or talking with the utmost looseness which the narrow limits of human capacity will allow, it is not because he is a spooney."
- George Eliot, Middlemarch Feb 26, 2008