that guy

Noun

 * 1)  The stereotypical badly-behaved or stupid person. Often in the phrases "Don't be that guy" or "I don't want to be that guy."
 * 2) * 2001, January 23, Bob McGinn, “Different strokes”, Milwaukee Journal Sentinel, page 3C:
 * “Nobody wants to be that guy that’s on SportsCenter that’s arrested,” Giants defensive tackle Keith Hamilton said. “I definitely don’t want to be that guy.”
 * 1) * 2008, June 24, Mark LaFlamme, “Superhero Stuff”, Sun Journal, page B1:
 * Rebekah groaned, covered her eyes with an arm and said: “Aw, I don’t want to be that guy.”