loon·y

1 [loo-nee] adjective, loon·i·er, loon·i·est, noun, plural loon·ies. Informal.
adjective
1.
lunatic; insane.
2.
extremely or senselessly foolish.
noun
3.
Also, looney, luny.


Origin:
1860–65; lun(atic) + -y2

loon·i·ness, noun
Dictionary.com Unabridged

loon·y

2 [loo-nee]
noun, plural loon·ies.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To loony
00:10
Loony is always a great word to know.
So is ort. Does it mean:
a scrap or morsel of food left at a meal.
the offspring of a zebra and a donkey.
Collins
World English Dictionary
loony, looney or luny (ˈluːnɪ) [Click for IPA pronunciation guide]
 
adj , loonier, looniest, lunier, luniest
1.  lunatic; insane
2.  foolish or ridiculous
 
n , loonier, looniest, lunier, luniest, loonies, looneys, lunies
3.  a foolish or insane person
 
looney, looney or luny
 
adj
 
n
 
luny, looney or luny
 
adj
 
n
 
'looniness, looney or luny
 
n
 
'luniness, looney or luny
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

loony
1853, Amer.Eng., short for 'lunatic, but also infl. by loon (2), which is noted for its wild cry and method of escaping from danger. Slang loony bin "insane asylum" is from 1919. Looney left in ref. to holders of political views felt to be extreme is from 1977.
Online Etymology Dictionary, © 2010 Douglas Harper
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Slang Dictionary

loony definition


and looney; loonie
  1. n.
    a crazy person. (From lunatic.) : I'm beginning to feel like a loonie the longer I stay around here.
  2. mod.
    crazy. : That is a loony idea. Forget it.
  3. mod.
    alcohol intoxicated. : She's acting a little loonie. Let's get her home before she's sick.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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Example sentences
He makes the viewer buy this film's loony premise, and buy it with a smile.
And these highly evolved fish regard their lost relatives not as the loony ones
  living in a barrel, but as martyrs.
Others label him a dreamer, or worse, a pyramid buff with loony ideas.
No screenwriter could possibly gin up a scenario this delightfully loony, and
  if one did, no one would believe it.
Synonym Game
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