1. A male at a wedding or social gathering who is oblivious that he is making an ass of himself and embarassing everyone who knows him.
Dwayne was "that guy" at the wedding. He hit on 3 bridesmaids and vomited in the planter outside.
by Bud E Love May 5, 2003
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1 who says that he will call you and then never does, but makes up an excuse for why he didn't.
I was soo excited to be with this guy last night.
by angry jessica November 25, 2004
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Refers to one that who is talented, successful, skilled, or good with communicating with females. See stud.
John Tucker is "The Guy".
I wish I could be as popular as he is. He's "The Guy".
by Mitch P. January 15, 2007
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used to address a friend when he/she does something funny/silly.
(friend serenades to the teacher in class)

"THIS GUY!!!!!" =)
by jtwanger May 27, 2010
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The guy who seems to be in every movie, every TV show, but you still don't know his name.
Girl: "Hey, look! Its him again!"

Guy: "Who?"
Girl: "You know, the guy from that movie we saw...? That guy!"

Guy: "Right."
by bowlingbabe October 16, 2010
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