that guy

Someone who shows up at a party with a guitar in a pitiful effort to attract the opposite sex.

"Donovan put the damn thing away, your being that guy again."

by TheLuciferEffect January 30, 2009

that guy

a person that is awkwardly left out, has friends, or is not really noticed, but has friends.

that guy Karanvir and my other friends, but i forgot who Karanvir is,even though he is my friend.

by that guy karanvir April 20, 2016

that guy

Someone who's always calling a girl, or IM-ing her, or running into her at a bar. He always flirts with her -- and even thinks he has a shot -- even though she's made it perfectly clear that she's not interested. Not as malicious as a stalker, just annoying.

Ugh, that guy called me AGAIN.

by Leefy Greans January 12, 2006

that guy

One who does something stupid, annoying, or pointless.

One who asks questions they know the answer to simply to try and feel less stupid.

Anyone who fucks up.

*proffessor writes 5+5=10*
Prof: See, the result is 5.
That Guy: duh.. don't you mean the result is 10??
Everyone Else: Shut the fuck up dumbass, stop being that guy.

by BigK1D April 28, 2004

that guy

"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 14, 2006

that guy

The one guy in a crowd that does what everyone expects someone to do

He is that guy that says "cha, cha, cha" in the pauses in Happy Birthday

by SNOWPLOWMC June 16, 2009

that guy

The one person who, with a broken-up couple in a crowded room, says something loudly that would imply that the couple is dating.
This inevitably happens for each badly ended relationship once word spreads to everyone except "that guy" that they are through.

"Hah, hey you two, when's the wedding?" -that guy.

by JC McFly September 14, 2007