29
(N.)(that-guy)The guy who drives at night with those blue lights on his car AND his high beams on, but ONLY uses them when it's a perfectly clear night, and he shines them right into your bedroom just to wake you up before work. He does this multiple times a night just to make sure you don't go back to sleep.
He also drives behind people to make sure they can't see SHIT.
Boss: "Johnson, why are you late?!"
Johnson: "Yeah, you see, it was That Guy again...."
Boss: "Oh, don't sweat it then. That Guy's an asshole."

or

Guy 1 "Oh my fucking God, it's that guy again!"
Guy 2 "The black one? With the funny moustache?"
Guy 1 "No....."
Guy 2 "You mean the one with........ OH MY GOD! WHAT THE HELL IS THAT LIGHT?!"
Guy 1 " DON'T LOOK INTO THE LIGHT!"
Guy 2 " OH MY GOD, I CAN'T SEE, HOLY SHIT, I THINK WE'RE GONNA CRASH"
by Hady October 28, 2008
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30
Someone who goes for younger girls, most often occurs with a large age difference, Someone who is just known to be that guy.
Dylan: Who's that guy who's always creeping on the grade 9's.

Lachlan: Thats me, Im that guy.
by y.m.c.m.b February 25, 2011
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31
The guy driving down the road with his arm out of the window, holding a mattress to the top of his car.
"You don't wanna be that guy."
by jahburbie December 08, 2005
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32
In pretty much every country around the world where drinking alcohol is a cultural norm, every single social circle includes at least one person who becomes "that guy" (plural: "those guys").

We all know of whom I speak: The one friend who makes himself stand out in all the wrong ways. He always gets absolutely trashed, and makes a COMPLETE tit out of himself.
"Yeah, my friend Dom just got chucked out of the union for getting his knob out in the middle of the dance floor before unloading his stomach onto the floor"

"Shit. Doesn't sound good".

"Standard. He can generally always be counted upon to be That Guy".
by Zarathustratosphere June 26, 2011
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33
Refers to Call of Duty: Modern Warfare 2. In every game you build up a killstreak, that eventually gets shot down by some jackweed. This jackweed is known as "That Guy", or someone who spends the whole game shooting peoples hopes, dreams, and AC-130's down.
That Guy shot down my chopper gunner before it could even get in the map. Now I have to get 14 kills by myself to get the nuke.
by Camp of Duty July 08, 2010
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34
A person who constantly ruins jokes by repeating them, especially inside jokes that they were not a part of. He also is annoying and made fun of behind his back by all his friends. He tries to do stuff outside of the box, but wants to make sure everyone knows he is doing it by informing them in great unnecessary detail that is not needed and laughs half of the time he is explaining his dumb ideas. He sometimes may also score the hottest girl at your school some how and no one knows why. He may also try to join groups of friends uninvited.
Cool guy, "Hey guys y'all want to hang out this weekend"

That guy, "Yeah I'll be there for sure!"
Cool guy;, "Well we were kinda wanting it to be like just a couple of guys"
That guy, "Yeah don't worry I'll be there"

That guy, "Your mom!"
Cool guy (under his breath looking at his friend peripherally), "That was cool in 6th grade.."
by Flipper Gong September 07, 2011
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35
"THAT GUY" is the guy everyone wants to be but cant...
Girl 1: hey sara whos that guy.

Girl 2: idk but i wanna meet him.

example 2

Guy 1: yo dude whos that guy flirting with my girlfriend.

Guy 2: idk but dont mess with him cuz hes "THAT GUY".
by "THAT GUY" August 13, 2006
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