You know him. He's That Guy, you know That Guy when you see him. He's straight BALLEN when my man walks in a crowd of people, they all stop.
by JTX_4777$ January 17, 2023

Another word for homie or bro. Often used either as a compliment or a way of describing someone as a close friend, or a way of saying thank you
1. *makes death cup in beer pong*
Person watching: "What a guy!"
2. "Do you know Ben?"
"Yea he's the guy"
3. "Aye Josh if we order pizza will you go pick it up"
"Fuck I guess"
"You're a guy"
OR
"Will you be a guy and go pick up the pizza?"
Person watching: "What a guy!"
2. "Do you know Ben?"
"Yea he's the guy"
3. "Aye Josh if we order pizza will you go pick it up"
"Fuck I guess"
"You're a guy"
OR
"Will you be a guy and go pick up the pizza?"
by Heptone March 19, 2016

(n)A person who makes a fun occasion awkward or otherwise boring by being the one guy to disagree with the majority; a person made into an outsider by his ridiculous antics.
(v) being That Guy on any occasion; Being made into an outsider by your ridiculous antics.
(v) being That Guy on any occasion; Being made into an outsider by your ridiculous antics.
"dude look at Rick"
Rick-(proceeds to tell the girl he just met about the history of Judaism)
"Oh god he's become that guy"
"Should we leave him?"
"Yeah, he's already too far gone."
"Bob, you've been That Guying on several occasions for a while now, we all just want the old Bob back!"
Bob-"you guys just don't understand! I REALLY LIKE NINE INCH NAILS!"
Rest-"oh god he just That Guyed so hard it gave me ASL"
Rick-(proceeds to tell the girl he just met about the history of Judaism)
"Oh god he's become that guy"
"Should we leave him?"
"Yeah, he's already too far gone."
"Bob, you've been That Guying on several occasions for a while now, we all just want the old Bob back!"
Bob-"you guys just don't understand! I REALLY LIKE NINE INCH NAILS!"
Rest-"oh god he just That Guyed so hard it gave me ASL"
by JackJackAttack September 21, 2014

A human that knows NOTHING...cares about NOTHING...thinks about NOTHING except the fastest way into his girlfriends house
by Childs Play April 18, 2006

A group of young male college students who are good friends and live together/next door to each other in dorm rooms. Requirements to become a "Guy" include but are not limited to the following: Just be there for the Bud Light, be metro, be creepy, be a lumberjack, be italian, be straight edge, be in the army, be a virgin, play a lot of xbox 360 or just make fun of sXe by putting an 'x' before and after everything you say. Disqualifications from being a "Guy" include but are not limited to the following: being between 6'5" and 6'8", being female, sucking cock at fucking pussy, not liking Labatt Blue or beer in general, not liking sports and finally not loving the movie SUPERBAD. xUPB 4 LIFEx
by GI Jon April 14, 2008

by CBNSK July 3, 2007
