def1. The real thing def2. The one and only
That one is the real McCoy.
by Chris October 22, 2003
Top Definition
Plain and incospicuous when sober, but give this guy a beer and he turns into the deepest most controversial cracker-barrel philosopher you'll ever meet. Holds unique opinions on all kinds of both modern everyday converstional topics aswell as obscure historic events dating back as far as the stoneages. He'll be more than happy to share all this unique knowledge with you and go into great detail as to why your own opinions on those topics are wrong. His voice thereby will increase in volume exponentially with the amount of alcohol you give him.
Jake: Dude, what's up with that shouting guy over there?
Tom: Beats me man. He was quiet until a minute ago, then he took a gulp of his beer and now he's ranting on about the Osman Empire and how the government faked climate change to blind the people.
Jake: Great, another McCoy.
by Jack4321 July 16, 2014
the realest person you could ever meet...
That guy right there is the real mccoy. he's very professional.
by Sun Rhythms October 13, 2004
A hot, sexy, pimp.
I'm here to make sweet love to your mom.
by McCoy July 01, 2003
Getting no ass
Bennett: "Hey man you get with that girl from the bar?"
Pete: "Nah man, I got McCoy-ed so I went and jerked it"
by Frensua November 11, 2015
A wise-ass.

(Jack McCoy, from the television show Law & Order.)
"I just baked some cookies, and now they are gone. Did you eat them all?"

"Who are you-- Jack McCoy?"
by farbisine August 08, 2004
when someone in your office prints over your good paper after you have told everyone not to print.
Darn it, I need to get another sheet of Parchment paper because someone mccoy'd me.
by CourteousCorpse February 13, 2015

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