That Guy 

That guy is one who attends a party only to take advantage someone's drunk girlfriend. Now not only did you ruin her life, but you also pissed off her boyfriend likewise all for your own greed. Perhaps this can be a tactic for vengeance, perhaps you are just a douchebag. Whatever the case, you are now "that guy"

Hungover college student: OMG OMG OMG, I totally shouldn't have slept with "that guy" last night! What if my boyfriend finds out? He'll probably beat me and none of it was even my fault!

Friend: About that... he was also at the party.

Hungover college student: O_O

That Guy by A rabid chicken November 21, 2010

that guy 

the person in line you point out for doing somthing stupid

hey Bryan Look at that guy he is so loud. Hey look at that guy he is so gay.

that guy by cheryl September 12, 2003

That Guy 

Kaz

it was that guy

That Guy by Nojar September 14, 2003

That Guy 

The guy who takes vacation at work but still comes to work to "catch up" or calls in everyday of their "vacation" to check on things.

"I am on vacation next week, it will give me ample opportunity to catch on on things in the office."

Dude, don't be 'that guy'

That Guy by MightyBean December 28, 2005

That guy  

some guy who's just like the guys over there. end of story.

That guy : " hey watzup... gee wiz I'm just like the guys over there."

END OF STORY

That guy by a;sldkfjqpwoeirutyzmxncbv October 12, 2008

That guy 

A person who is not important enough for anyone to remember their name. That guy is most likely a loner or socially awkward.

Who the hell is that guy and why should I even care?

That guy by The Kazman March 3, 2010

that guy 

that guy who is really nice. Often the nicest person you will ever meet. However

this comes with a price. Let him get to comfortable or else he will begin

ditching you, often to make love to his cousins involving but not limited to

anal, vaginal, oral, ear, and belly button. Oh yeah and cock slit. Oh yeah don't

let him around girls cause he will brag but really he will stub his toe fall

then go lay in the corner and mope. Mope like the biggest bitch. He also has a

really small penis. He also may be caught up in the act of making secret pornos

with his sister,cousins, and last but not the least his stuffed bear.

Girl" who was that"

Other girl" ugh that guy, why did I let him get so fucking
comfortable around me."

Girl"having sex with his cousins."

Other girl"YEP!!!!"

Girl" wow this summer chris is cool"

that guy by that guy definer January 15, 2014