22
A generalization of the people who do stupid or reckless actions. Typically someone that no one wants to be like.
Taylor: Meg, just pull out into the other lane.
Meg: But I don't want to be that guy who almost causes an accident. Everyone hates that guy!
by vloveee96 March 25, 2012
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23
An actor whose face you recognize from other movies but whose name you don't know. Once That Guy's anme becomes known, he ceases to be That Guy. That Guy alums include Joe Pantaliano, Steve Buscemi, CLint howard, etc.
"Hey! That Guy!" (said while watching Out For Justice and the Mexican goon with the tattoo on his neck walks onscreen)
by Marcel Leroux August 17, 2004
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24
That Guy is the baddest motherfucker on this earth, you can usually hear about him in tv shows when the main characters are jealous because "That Guy's getting laid by those two gals tonight" or "That Guy actually bought Playboy Mansion".

An easy mistake to make is hear about "that guy" and believe people are referring to "That Guy". The two are polar opposites, one being the pinnacle of awesome and the other being a retarded pussy that frequent parties orchestrated by 15 year olds.

While That Guy is pretty cool, he's also an elitist asshole, so you're probably not his friend unless you're easy and pretty hot, in which case you're not reading this.
-"That Guy just made it with her"
-"What? But she's my (trophy) wife!"
-"Apparently That Guy doesn't care much for the bonds of marriage"
-"Neither do I but I'm an old rich man!"
-"I hear your wife's on redtube now"

That Guy taking from the rich and giving back to the poor.
by Metal308 October 03, 2009
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25
He fools you once, you're mad. Fools you twice, how could he. Fools you three times and he's officially that guy, you know the one. He goes to the bar and he's like "This suit is officially Georgio Armani, my dad knows him", FUCK YOU. I AAAAAIIIIINN'T HAVIN THAT SHIT!
by Unknowni123 July 29, 2013
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26
This is a person that is pretty much a sarcastic asshole and/or a slightly balding fuck. They try to make you laugh by tellin terrible jokes about some dead guy that nobody gives a flyin fuck about in the first place. They cant stop talking about needless things in life.
Q: Hey i am trying to think of a description for Mr. Griffin. Can you help me?
A: Yeah man thats easy. He is That Guy.
Q: Isn't that kinda harsh?
A: Nah man he meets the description perfectly.

Example #2

Trinite's are as a whole "that guy"
by NotThatGuy2015 January 14, 2011
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27
Stereotypical middle-aged, balding, hawaiian-shirt wearing, IROC Camaro driving man with a beer gut, rose gradient sunglasses, and a trophy wife to whom he is 20 years her senior.
I hope I never end up like -that- guy.
by lord May 11, 2004
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28
One who does something stupid, annoying, or pointless.

One who asks questions they know the answer to simply to try and feel less stupid.

Anyone who fucks up.
*proffessor writes 5+5=10*
Prof: See, the result is 5.
That Guy: duh.. don't you mean the result is 10??
Everyone Else: Shut the fuck up dumbass, stop being that guy.
by BigK1D April 28, 2004
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