An Oxymoron is two words, or a compound word, with contradictory definitions. The most commonly-used example of an oxymoron is 'jumbo shrimp,' as a shrimp is small by definition and therefore cannot be jumbo.
More oxymorons:
Government ethics
Friendly fire
Pretty ugly
United Nations
Hamburger
Urban Dictionary
Holy war
by Corn Goblin June 06, 2017
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A moron who doesn't deserve to live because the only thing they can do is wasting oxygen in the atmosphere
A : I haven't been getting much sleep lately.
B : Best cure for insomnia is to get a lot of sleep.
A : Wow. That's such an oxymoron.
by dl₩lrma April 03, 2020
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'Microsoft Works'
'Military intelligence'
by jacko March 01, 2004
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An idiotic, slow and inept person who also uses way too much Oxycontin/Oxycodone. What is important to stress is that they would be a moron even without the Oxycontin/Oxycodone, but they're also a pillhead.
"Dang, where is Keith? He was supposed to meet us down at the lake an hour ago."

"Oh he's an Oxymoron... He went the wrong way... and smoked a month worth of 20's."
by Chad Wise April 16, 2012
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The act of becoming moronic due to the overuse and abuse of oxycontin.

OR

A person who is addicted to oxycontin, therefore making them a retard.
Person 1: Hey man, you talked to Levi lately?
Person 2: No man, I heard he's a real oxymoron.
Person 1: So that's why he keeps ducking me for money.
Person 2: That fat fuck...
by cosmicbaby June 07, 2011
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