A mysterious figure, often someone with mad skills. Every sport has a That Guy as does every branch of the Military. That Guy is often the topic of conversation among aspirants in these fields. Such as High School football players referring to That Guy on an NFL team or Soldiers referring to That Guy on the Special Forces Detachment.
Soldier 1: That Urban training was rough, beat my old best time though.
Soldier 2: Yeah me too, but That Guy smoked us.
Soldier 1: Yeah, who was That Guy?
Are you That Guy?
Soldier 2: Yeah me too, but That Guy smoked us.
Soldier 1: Yeah, who was That Guy?
Are you That Guy?
by Corpy007 April 27, 2010

by skittlesbunnyx3 June 25, 2008

The guy everyone talks about.
The guy everyone would want to be friends with.
The guy everyone wants to hate on.
The guy everyone wants to be.
All of the above.
The guy everyone would want to be friends with.
The guy everyone wants to hate on.
The guy everyone wants to be.
All of the above.
by yoshi123456789 August 18, 2010

Slang term used for anything to do with semen in the realm of computer users. The term is generally pronounced "gooey"
Teacher: "Ok, so I'm teach you guys how to make a GUI screen."
Student: "Oh I make gooey screens all the time."
Teacher: "Oh great, then you can show the class how to- aaawwwww. We don't need to hear that..."
Student: "Oh I make gooey screens all the time."
Teacher: "Oh great, then you can show the class how to- aaawwwww. We don't need to hear that..."
by Jimmi June 6, 2005

That guy, is the person who enters an online video game just to mess with people. The "That Guy" is in every game room. He/She can range from someone who just messes around killing his teammates or someone with just a high pitch voice.
That Guy: Oops I killed my whole team again.
You: Oh great its That Guy.
Kid with high pitch voice: Hey guys are you ready for fun?!
You: We have officially found That Guy.
You: Oh great its That Guy.
Kid with high pitch voice: Hey guys are you ready for fun?!
You: We have officially found That Guy.
by Todd Feipel May 14, 2008

That guy, is the person who enters an online video game just to mess with people. The "That Guy" is in every game room. He/She can range from someone who just messes around killing his teammates or someone with just a high pitch voice.
That Guy: Oops I killed my whole team again.
You: Oh great its That Guy.
Kid with high pitch voice: Hey guys are you ready for fun?!
You: We have officially found That Guy.
You: Oh great its That Guy.
Kid with high pitch voice: Hey guys are you ready for fun?!
You: We have officially found That Guy.
by Todd Feipel May 14, 2008

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
