Be that guy 

That sarcastic definition that surprisingly no one has made.

When you're doing something that's shitty or annoying as fuck and no one wants to stop you, because we live in 2021 and everyone is lazy.

Guy 1: *does something annoying over and over*
Guy 2: Be that guy...
Guy 1: *keeps doing it*

Be that guy by wtfh is pseudonym? March 19, 2021

I hate to be that guy, but... 

A phrase people can add before saying something nitpicky, like correcting you on some inconsequential fact.

Often secretly means, "I love to be that guy", since the kind of people who say it get a little thrill from correcting others and being pedantic.

"I hate to be that guy, but... you said The Matrix came out in April 1999. It was actually first released on March 31st."

I hate to be that guy, but... by JCR1987 August 20, 2014

Dont be that guy. 

What you say to someone who is preforming an act of stupidity or just plain lameness. When somebody is being dumb or annoying you tell them DONT BE THAT GUY.

(SO AND SO just unnesscasarily adds to a joke or comment that is quite frankly not funny)

"DUDE, dont be that guy."

Dont be that guy. by JTARPZ October 2, 2009