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According to the American Heritage Dictionary, to "whistle dixie" is "(to engage) in unrealistically rosy fantasizing". Usually, it's used in a negative way..."Don't just whistle Dixie", for example, means "Don't sit on your ass wasting time".

It comes from the popular southern song, Dixieland.

See also, self-delusion, daydreaming, and/or bullshit.
"Your angel's whistling dixie!"
-Ms. Scarlet in the movie "Clue", to a door-to-door evangelist

"What are you doing, sittin' on your ass whistling Dixie? Do some goddamn work for a change!"
-My eccentric co-worker
by MindsOfMongoose July 10, 2008
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Aug 4 Word of the Day
Man's greatest invention, brain bleach removes bad memories and general DO NOT WANT moments. Every household should have a few gallons.
1: Dude, I just walked in on my parents.
2: Have some Brain Bleach!
by Andikun November 06, 2007
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"Where've you been Delilah? Out back again with that no good boyfriend , Whistling Dixie?"
by Stephen McCormick February 14, 2015
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When a co-worker whistles nonstop all day long. And they are in close proximity to you.
Frank is so fucking annoying, he's been a regular Whistling Dixie all day.
by taintasaurus April 12, 2006
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A rimjob from a diesel truck's exhaust that results in a whistling noise (similar to the sound made when you blow across the top of a glass bottle).
Colton's butthole looks like he's been whistling dixie all night.
by Nursebilly December 02, 2017
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the particular high achieved by taking mushrooms (more commonly refered to as "tripping shrooms").
when you trip on shrooms you whistle dixie, or you ARE whistling dixie.

(if you've done shrooms you understand.)
by FEvER PITCH April 16, 2006
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