1. Friend; commonly used in greetings.

What’s up bro?
I vouch for Todd, we’ve been bros since way back.

2. An alpha male idiot. This is the derogatory sense of the word (common usage in the western US): white, 16-25 years old, inarticulate, belligerent, talks about nothing but chicks and beer, drives a jacked up truck that’s plastered with stickers, has rich dad that owns a dealership or construction business and constantly tells this to chicks at parties, is into extreme sports that might be fun to do but are uncool to claim (wakeboarding, dirt biking, lacrosse), identifies excessively with brand names, spends a female amount of money on clothes and obsesses over his appearance to a degree that is not socially acceptable for a heterosexual male. The female equivalent of the Bro is the Bro Hoe. Bro Hoes are Bro groupies that hang around bros, many of whom are actually quite hot and are thus spared the scorn that is heaped on Bros.
My sisters new boyfriend is an idiot; the dude is a total bro.
by Lt. Dungheap May 01, 2006
A Term once used by people to realte to there bloodly brother.This term is now frequently used by "Barsgahyes" to refer to eachother. This is a term that has been as you would say "killed" by the upcoming race of "Barseegs". The Word "bro" has lost its meaning, now it means frankly "ANYONE". You can say bro to whoever the fuck you want, and as long as they are "barsgahye" dey will understand where you are coming from.
Ay bro, lav es bro? iight bro see you at MP tonight bro.
by Garen November 14, 2004
a name for a motorcross kid who rides dirtbikes
that trevor dude thinks he so chill just cuz their now calling him a bro.
by brody October 25, 2004
Guys who wear popped collars, baseball caps, american eagle and aeropostale. They like to play sports such as hockey basket ball and golf. On rare occasions they have a tattoo. Usually a bro can be seen on weekends shot gunning beer or listening to Kanye West. In most cases bro's are closet cooler drinkers. They are always found with their other bro friends and usually with blonde heavily made up girls.
sean is the biggest bro i have ever seen.
by Crustache Smith October 28, 2007
ha dumbass who thinks he's the shit and really isnt.... hella ugly
he is a fucking bro.
by jaime January 14, 2005
An Australian Gangster usually of Lebanese descent. Can usually be spotted applying gallons of hair gel whilst robbing school children of their cheese.

Can be distinguished by:
1. Plastic looking hair
2. Rotten cabbage smell
3. Being the only people to threaten inanimate objects for looking at them.
1. "Bro can I have that seat, bro?"
2. "Bro, don't look at me! Look at me when I'm talking to you!"
3. "Bro, wipe that smirk off your face"
by Ja Red September 14, 2004
short for bothers. A way of addressing a close friend.
guy2:hey man
guy1:mike the hell are you were sopposed to be here 2 hours ago and help me
guy2:Hey i'm over at cavilleas.You want me to leave?
guy1:Naw man, we're bros, you can stay over there
by caviglea February 06, 2004
A male aging from 18-24 years, wears Birkenstock sandals, upside down visor or baseball cap with pre-frayed brim also watches Family Guy and plays ultimate Frisbee. Usually in a fraternity, older version of a prep.
Joe: Hey you missed the party last night, where were you?
Tom: Just screwing around, how was it?
Joe: It sucked because there were a million bros there.
by joejauwna June 14, 2007

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