- any of several large, short-tailed, web-footed, fish-eating diving birds of the genus Gavia, of the Northern Hemisphere.
Origin of loon1
- a crazy or simple-minded person.
Origin of loon2
Examples from the Web for loon
That loon is known as “Dr. Who,” and his nerdy fans are legion.The Perfect Book for Every Man in Your Life
December 20, 2013
There was Sen. Claire McCaskill, fresh after dispatching Tea Party loon Todd Akin, on Meet the Press.On the Fiscal Cliff, Republicans Got Nothin’
December 2, 2012
Sticking with six brackets is supposedly meant to signal that he believes in a little stability and is not a loon.Michael Tomasky on Mitt Romney’s Tax-Plan Flim-Flam
February 25, 2012
As the loon brigades proved as they berated Precious, our humanity is the enemy of ideologues.David Mills' Gift to Television
April 5, 2010
Next thing you know that loon Glenn Beck will have a hit TV show.Obama's Tough Love for Detroit
March 31, 2009
As if one loon—I mean as if one Chapter member in the family wasn't enough.Cap'n Dan's Daughter
Joseph C. Lincoln
Then he threw off his main-hatch and "haw-hawed" like a loon.Cape Cod Stories
Joseph C. Lincoln
Gin I could have come up in time, the loon had never risen from the ground.'Two Penniless Princesses
Charlotte M. Yonge
Knowing what she knew of her brother, Loon Dyke could never again be her home.The Hound From The North
But a loon flapped up from the rushes, brushing the priest's face with its wings.Lords of the North
A. C. Laut
- the US and Canadian name for diver (def. 3)
- informal a simple-minded or stupid person
- Northeast Scot dialect a lad
- archaic a person of low rank or occupation (esp in the phrase lord and loon)
Word Origin and History for loon
large diving bird (especially the Great Northern Diver), 1630s, from a Scandinavian source (cf. Norwegian lom, from Old Norse lomr).
"crazy person," mid-15c., lowen "rascal," of uncertain origin, perhaps related to Dutch loen "stupid person."