What you would say to any douche-bag attacking you in a dismissive, bias, ignorant, hypocritical, narcissistic, distortive and incriminating way, much like the douche-bag commentary of Bill O'Reilly.
Guy #1: Dude, I've lost so much respect for you after you called my girlfriend a bitch.
Guy #2: But you said that she was yourself, remember?
Guy #1: That wasn't what I meant.
Guy #2: You're such a hypocrite; you know perfectly well that I was just backing you up after you said it, so get off your high-horse and Don't O'Reilly Me, asshole.
Guy #1: We need to cut to a commercial.
by Ryryq March 21, 2010
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1. to unnecessarily defame or put down another person for no other reason than that it gets you attention

2. to lie with a total discord for truth

3. to shout someone down or talk over them, despite having nothing worthwhile to say.
Immature people tend to start Bill O'Reilly-ing instead of forming a real thought or opinion.
by DarkEdgeDash February 16, 2007
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Often Bill O'reilly syndrome is associated with some impairment of cognitive ability and a particular set of facial characteristics. Individuals with Bill O'reilly syndrome tend to have a lower-than-average cognitive ability, often ranging from severe to moderate disabilities. The average IQ of people with Bill O'reilly syndrome is around 50. To date, only one case of Bill O'reilly syndrome is known.
Doctor: "I'm sorry to say your child has been diagnosed with Bill O'reilly syndrome"
Mother: "Should we put him down?"
Doctor: "That would be best"
by jesussavesmoney March 31, 2011
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To fabricate or deny evidence/well documented/easily referenced facts in order to demonize non-American style neo-conservatives, non-Americans, or anyone with whom an individual does not agree.
"I'm not surprised you'd dismiss a 'Frontline' report out of hand, John. You'd lie like O'Reilly if it meant appearing to win an argument."
by Daniel Ponech July 7, 2005
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Usually a blond sometimes a Burnett he tends to be kind but he is also the funny one of the group. He tends to have green or blue eyes and is very competitive. He is very athletic and is more in to football and wrestling he is the one who has the hot girlfriend and is the popular one of the school
Girl 1: oh look there's O'Reilly!
Girl 2: my God he is so hot
by Pinedale_wyuser September 24, 2017
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Its when someone is built like an O'Reilly ad and they don't even know what an o'reilly ad is.
by Royalant101 June 27, 2020
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When you think a girls tits are so amazing you can't possibly do anything but fondle them and you want to be inconspicuous, you look away and reach across her chest and gently push your elbow into her tit in multiple places more or less searching for the nipple all along thinking she has no idea what you are doing because you are so drunk.
That girls tits were so fuckin unbelievable, I gave her the O'reilly! She never knew what hit her.
by mwf February 22, 2014
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