An acquaintance who you are fondly referring to, but you don't actually know this person very well, nor is he or she your friend.

Derived from Senator John McCain's frequent use of the phrase "My friends..." on the presidential campaign trail directed toward a large crowd of strangers. Strangers he was fond of, yes, but strangers nonetheless.
Christine: My friend from my huge college class and I were working together and she said...
Michelle: Wait, what was her name?
Christine: I don't remember.
Michelle: And she's your friend?
Christine: Uhh...
Michelle: So she's your John McCain Friend.
Christine: Yeah, that's a good way to put it.
by McCainFTW March 6, 2009
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Indicating ignorance on a subject to be somehow legitimate because "I wasn't born yet."

As when confronted by Paul Begala, on HBO's Real Time With Bill Maher, with the fact that Ronald Reagan blamed his problems on Jimmy Carter for many years, Meghan McCain responded, "I wasn't born yet, so I wouldn't know."

To which Begala replied, "I wasn't born during the French Revolution but I know about it!"
I asked my friend Daniel, "Who's bigger, Michael Jackson or Elvis Presley?"

Daniel: "Who's Elvis Presley?"

Me: "The King of Rock and Roll? Hello? '50s, 60s, 70s?"

Daniel: "How should I know? I wasn't even born then!"

Me: "Dude. Are you seriously pulling a Meghan McCain?"
by TheRealZamboni July 14, 2009
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Used during beer pong, this term describes a cup that has water or beer beneath it, which causes it to mysteriously slide when hit by a ball (See ghost cup). Because the cup usually diverges from the original formation, it becomes a maverick cup, thus becoming a John McCain cup due to the fact that McCain is the original Maverick. A second cup that goes rogue is called a Sarah Palin cup.
Dude, this table is so wet, every time I shoot I end up with a John McCain cup. Damn mavericks!
by Murky Waters September 6, 2008
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A Muslim republican that wants to be president
John Hussein McCain wasn't even born here. He was born in Kenya and we all know it. The Hawaii crap is just a buncha bull.
by barack HUSSEIN Obama 1 January 22, 2009
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Named after Thomas Mccain, it is the act of slathering and battering your balls in Prego sauce.
It is also known as the ol’ slather and batter challenge
Jim: I’m feeling rather ballsy today.
John: Feeling a little ballsy, aren’t we? Crap that jar of Prego sauce. I believe it is time to attempt The Tomato Mccain Challenge, otherwise known as the ol’ slather and batter challenge
by Oddly Offensive November 8, 2020
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The inability to lift your arms above your head after a good workout.
Man I did so many curls last night I have John McCain arms now.
by JP1212 March 24, 2011
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Guy 1: "So, I saw John McCain at the Suns game last week."

Guy 2: "lol"
by animal found toast June 6, 2010
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