The one person who nobody likes and just has to ruin everyone's fun. Commonly seen being a douchebag while committing actions that are completely irrelevant to the situation.
Josh: Guys, I just found out I actually like football. I might keep playing if no stupid jackasses show up this time.
Doug: Oh God, here comes that guy.
That Guy: Sup guys. Any of you get laid yet? Josh, are you still a virgin? I'm gonna get you laid this summer.
Josh: That's it, I'm gone.
That Guy: Hold on, guys, I'm gonna fire up some mary-j for a minute. *starts puffing away on a joint*
Doug: Oh God, here comes that guy.
That Guy: Sup guys. Any of you get laid yet? Josh, are you still a virgin? I'm gonna get you laid this summer.
Josh: That's it, I'm gone.
That Guy: Hold on, guys, I'm gonna fire up some mary-j for a minute. *starts puffing away on a joint*
by Implying713 June 24, 2011
Get the That Guymug. At any social gathering, someone who can not handle thier booze, needs to be escorted out of the situation, possibly by force
Mike: did you see that guys get pepper sprayed, tased and ruffed up
Jimmy: Yeah that guy was loaded.
Jimmy: Yeah that guy was loaded.
by MikeGol October 16, 2008
Get the That Guymug. An exclamation used by nerds to express surprise, anger, or disappointment, and which is used in lieu of words that are considered by the nerd to be profane or vulgar, e.g., God, damn, shit, fuck, etc.
by von Trips August 29, 2009
Get the guymug. 
That guy is the guy who does things for the girl hes with or the girl he likes in gratitude of her actions with him.
Cam: I want a massage.
Micki: I will give you a massage.
Cam: I will give you one back, I'm just That Guy.
Micki: I will give you a massage.
Cam: I will give you one back, I'm just That Guy.
by JesusCam August 12, 2014
Get the That Guymug. The pinnacle of humanity, That guy is the best person in the world. His heavy breathing from going up the steps to the porch, combined with his aura of basement dwelling musk signal his arrival.
His mere presence is so powerful any females in the area will flee out of fear of the 20 hairs on his hypnotically attractive "beard".
His horrifying fetishes created from years of being beaten and growing up with 4chan as his surrogate parent astound and amaze psychologists.
To come into contact with That guy is to come into Contact with God himself.
His mere presence is so powerful any females in the area will flee out of fear of the 20 hairs on his hypnotically attractive "beard".
His horrifying fetishes created from years of being beaten and growing up with 4chan as his surrogate parent astound and amaze psychologists.
To come into contact with That guy is to come into Contact with God himself.
" By the power of the sacred soda can! I grant thee tentaclius hentaiicus! A all powerful spell to destroy thine foes!" - Sagas of That guy, 420:69
by MrDrEdward May 18, 2021
Get the That guymug. by the idiotkid September 30, 2019
Get the Guymug.