look up any word, like the eiffel tower:
 
50.
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
 
51.
a term given to a person who is in fact there, yet not there in person. the kind of person who when you see you're all like: Wow, he's in this class? and when they leave, you don't notice their absence.
person 1:WHO THE F*** IS BOB?
person 2:He's that guy in our geo class dude...
person 1:OH!!! that guy!
by JeremyD December 07, 2006
 
52.
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.
by MikeGol August 22, 2008
 
53.
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.
by Todd Feipel May 14, 2008
 
54.
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
 
55.
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
by a;sldkfjqpwoeirutyzmxncbv August 20, 2008
 
56.
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.
by Todd Feipel May 14, 2008