A professional bro. Someone who is too dope for words.It takes many years and experience to become a "Pro-Bro". A pro-bro can treat the ladies right, is always in style, can beast it up at any sport, is tight with every clique/everybody, and still manages to get sweet grades and turns out successful in life no matter what. A guy that does what he wants, and not what others say.
(Bro system listed below)
Level 1- Brethren
Level 2- Brother
Level 3- Bro
Level 4- Brah
Level 5- Broseidon
Level 6- Broham
Level 7- Broseph
Level 8- Brah
Level 9- Broski
Level 10- * Pro-Bro *
Brah- "Woah man, at Ashley's party last night I saw AJ with the hottest chick alive. Blonde, Tan, Nice chest, tall, gorgeous eyes. Perfect dime."

Broham- "That's because he ranks level 10, aka a Pro-bro, in the bro system."

Brah- "Oh...that's true Broham. 2 more levels till I become a Pro Bro."
by Awoww16 October 30, 2011
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To use the pro bro styles, look up bro and put pro with it. What do you get?

PRO BRO.
He is a Pro Bro. Pro Bro can be a good or a bad thing, usually bad. Again, don't be stupid and go look up bro.
by Ruljin December 29, 2007
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A talent-less male who only desires to befriend professional athletes or 'sponsored' individuals in hopes of a fame-by-association type relationship. Particularly in extreme sports.
Man, John used to be my best friend until he became a Pro-bro. Now he won't answer my phone calls.
by Victor Monsanto October 17, 2014
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when you do a favor for a friend because he's your bro, but you expect him to do a similar favor for you in the future.

not a sexual favor though, because that would be gay.
bro #1: ok bro, i'll fix up your computer quid pro bro.

bro #2: yeah but bro like what do you mean?

bro #3: you will see.
by Maclol September 9, 2008
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A favor or advantage granted to your bro in return for goods or services. Used to make bros even.
A-"Thanks for bailing me out of that one, Bro Montana"
B-"No problem, but just to make it all Quid Pro Bro, I'm taking your sister out on a date next week"
by jrkl September 23, 2009
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Someone (usually a guy) that makes fun of people who express emotions, aren't physically strong, or are gentle in any way.
Joe Rogan's jokes are very pro bro.
by TightBuns April 8, 2017
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