A contradiction in terms. Contrary to what some people will tell you, from Limerick to Florida, it does NOT mean a stupid ox. Derived instead from the Greek words oxy (sharp) and moros (dull).
Examples of oxymorons:

sunny night
military intelligence
compassionate conservative
ethical landlord
honest politician
open-minded altie
Christian Democrat
to appear invisible
deafening silence
friendly fire
charm offensive
civil war
by Fearman December 03, 2007
when a chick's nice warm mouth is giving a guy dome with ice in her mouth to create a contradicting sensation in the genital region
Alex: O's that oxymoron felt so good last night
O's: Did your cum freeze when it hit the ice
Alex: No because the warm mouth contradicted the freezing ice thus creating an oxymoron and a great feeling
by The cheating system February 01, 2011
Two words that mean the opposite.
Jumbo shrimp, bush and peace etc.
by <<<funyone>>> March 05, 2005
A sentence or phrase of contradictions that seem to make no sense upon first perusal but actual does on closer inspection. A common misconception is that any set of contradicting words placed together makes an oxymoron; but a phrase or sentence is truly not an oxymoron unless it actually DOES make sense, even if it might not seem to.
Parting is such sweet sorrow.

Faith unfaithful made him falsely true.
by makariln August 05, 2003
glassy eyed "good for nothings" who are addicted to oxycontin/oxycodone. they spend their days in dive bars, drinking cheap beer and socializing with other oxymorons, talking mostly about how they can get more pills.
oh yeah, Jack's son is an oxymoron, just like his father, he even took a couple in front of everyone at the bar yesterday!
by Draculeen December 10, 2010
A ridiculous comparision. Conjoining contradictory terms.
Example of Oxymoron
Unjust Law
Tax Return
Airline Food
Alone Together
Taped Live
Peace Force
Anarchy Rules
Affordable Housing
by Ashley Elizabeth October 26, 2005
One who constantly contradicts oneself, generally with an IQ of 90 or below.
Person 1: "Hey, that PETA guy is wearing a fur coat!"
Person 2: "What an oxymoron..."
by Ethan45vio February 13, 2013
An oxymoron is a figure of speech that combines contradictory terms. Oxymorons appear in a variety of contexts, including inadvertent errors such as ground pilot and literary oxymorons crafted to reveal a paradox.
Uttara Gupta: Hahahaha! Let me repeat myself, it's MY wall!
Rohan: Thats an oxymoron

As you might notice the usage of MY, which is a form of the possessive case of I used as an attributive adjective, with Wall which refers to the very public Facebook wall is quite moronic and in this case oxymornonic.
by kingrrr September 22, 2011

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