Bros are a type of white male between the ages of 16-24. They originated in Southern California during the early 2000s, but are now prevalent in most major cities throughout the US and Canada. They are characterized mainly by their frequent use of the word "bro" to describe other males who are actually unrelated to them, but can be noted by many other distinguishing features such as:

1. A brightly colored Abercrombie and Fitch polo (often pink) worn with the collar popped
2. A Livestrong bracelet
3. A trucker hat, worn either backwards or tilted to the side
4. A pair of gino sunglasses, most likely purchased from Armani Exchange for $39.99, and often worn indoors / in non-sunny weather
5. Being overly tanned, to the point at which it is apparent they spend several days a week at the tanning salon
6. Hair with too much gel in it
7. Working out all the time and wearing overly tight shirts to make it look like they are more jacked than they actually are
8. Frequent use of the words "chill" and "sweet"
9. Liking Family Guy better than the Simpsons
10. Listening to a combination of soft rock (Jack Johnson, John Mayer, Dave Matthews), the Red Hot Chili Peppers, and some rap.
11. Ripped jeans for formal attire and track pants for informal attire
12. The excessive use of cologne and axe body spray

There are several "bro repellants" available to the common North American young man:

1. Listening to thrash metal, grunge metal, or classic rock
2. Using words longer than six letters
3. Staying away from Laguna Beach, Malibu, or any other towns with names that are printed on Hollister shirts
Bro #1: Yo bro, let's go chill at Laguna beach bro, but first we have to work on our tans bro, I hear Lauren Conrad is gonna be there bro.

Bro #2: Sweet bro, sounds chillin' bro, let's do it up bro.
by alex1010 May 18, 2009

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Found primarily in the northeast and deep south, a bro is typically a white male from a wealthy background who enjoys excessive drinking and partying, sports (especially lacrosse), and music (usually underground rap (wiz khalifa, oncue), alternative (kings of leon, DMB), and techno) Bro's dress differently depending upon the region they live in, but the main elements include polo ralph lauren, sperry's, and designer sunglasses (costa del mars, ray bans). Bro's use the college they attend or attended as status symbols and most Bro's post-college can be found in the financial business. Bro's are considered to be extremely success oriented and their aggressiveness in life tends to anger several other societal groups (see hipsters).
Bros can be found in the majority of the male characters in Wedding Crashers, anybody who plays lacrosse, or Stifler from American Pie.
by Frosty the Flow Man August 07, 2010

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Quarterback of the Pittsburgh Steelers, best quarterback around, man who originated the "RothlisBURGER" sandwich at Pepi's in Pittsburgh, also know as Big Ben and Berger....o yea, GO STEELERS
Joe: Yo man you see B-RO's game last night?
Mike: Hell yea, he lit it up!!
by BIG MIKE April 18, 2005

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Lesbians who think they are men. They dress and act with "men" characteristics or traits. Until its that one week of the month where the Big Guy upstairs reminds them that they are in fact of the female gender.
I saw these two guys, but they were actually two Bros.
by The Real Spic June 18, 2016

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Bro is the short form of the word 'brother'.
We all will party along with bro!
by by Renna March 30, 2016

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a status higher than best friend. A bro always has his bro's back. You can easily spot bro by finding a small group of males doing something stupid. Contrary to popular belief, a girl can also be a bro. They mainly live by a set of rules (or guidelines) commonly called the BRO CODE. Brah and Bruh are different pronunciations typically used by douches to refer to basically any other male and should not be used unless you want to sound ridiculously douchey. The bond between 2 bros is everlasting and very rarely breaks apart. Many times, the bros will assist each other when hitting on chicks and a good bro will always jump on the "grenade" when his bro is hitting on a chick with an ugly friend in order to attempt to ensure that his friend will receive the best outcome possible. Unfortunately many young males misuse this sacred title reducing it to nothing but an obnoxious phrase a guy calls everyone in his frat.
Douche 1: sup brah?
Douche 2: sup bruh?
guy 1: dude they are such big douches
guy 2: yeah i know right? Hey bro, i met this chick i really like. You think you can help me get her?
guy 1: I got your back bro.
by KevJin April 24, 2014

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Being a "bro," contrary to popular belief, is not a bad thing. A real "bro" is in general, just a cool mother fucker to know. Bros know about sports in great detail and pretty much are the center of attention in everything he/she does. Only extremely lucky women/girls can be "bros." Whether it's watching a game, or engaging in general "bro-ness," bros are always doing what you wish you were doing. Being a bro comes with responsibilies: being the head bro constitutes making decisons that directly effect other bros. If you're not up to it, don't take on that task, you'll thank yourself for it later. Bros engage in bro-pong, which is a variation of beer-pong. Bro-pong isn't that much different, it's actually the same, just played with real bros. Frat backgrounds are preferred, but no necessary. Basically, being a bro is the preferred status of men 18-30. If you're in your 40's and still consider yourself a bro, you are too old. Put down the beer bong, and go pick your kids up from soccer practice.
"Bro, today I watched the Tigers beat the Yankees."

"Really? Bro, they suck!"
"I am glad to have a bro like you (girl/guy)."
by Head Bro of Bro-ness January 28, 2010

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A Bro is a guy that thinks he is way cooler than he really is. A Bro can be seen in pics making a face or a pose where he is trying so hard to look like hes not trying. A Bro will call all the other guys bro even though noone likes the bro. For people unfamiliar with this term, realize it is not mainstream yet and originated from www.whitekidsfromtheburbs.com. Other people would refer to a bro as a douche bag. Bros are usually idiots so a way to have fun with them is to call them bro every few words when you are talking to them and see how long it takes them to catch on.
Look at that absolute Bro with his stunna shades on inside and his white blazer. Doesn't he know hes at a friggin house party and not VIP at a ghey bar?
by JT Wolfe January 16, 2009

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