to get together with ones friends and drink heavily.
Dude, we're totally broing it up this weekend.
by wtfwtfwtf March 29, 2005
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We all have made mistakes. Bros always have each others backs. A Bro-no saves your bro from dating a disastrous girl straight from the beginning. If your bro says a certain girl is attractive, immediately say Bro-no. End of conversation.
Adam: Dude, she is so freaking hot. I think I might get her number!
Tim: (Thinks: ew) Bro-no!

1 week later
Adam: Bro, thank God you Bro-noed me. That girl ended up being a man.
by TimAdam March 17, 2011
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Obnoxious partying males who are often seen at college parties. When they aren’t making an ass of themselves they usually just stand around holding a red plastic cup waiting for something exciting to happen so they can scream something that demonstrates how much they enjoy partying. Nearly everyone in a fraternity is a bro but there are also many bros who are not in a fraternity. They often wear a rugby shirt and a baseball cap. It is not uncommon for them to have spiked hair with frosted tips.

Bros actually chose this name for themselves as they often refer to each other as "bro" even though they are not related.
I couldn't go to sleep last night because some bros at the party next door kept screaming, "Whoooooo!!! YEAAHHHHH! Whooooooo!"
by J Will May 8, 2005
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NOT THE DEFINITION FOR DOUCHEBAGS.
Your bro is your homie(s) for life. Calling someone your bro declares automatically that you are down for life, that your bros come directly in front of thy hoes. Choose carefully who you declare as your bro, because some people could intercept this very wrongly and it could backfire. You could call strangers you interact with "man" and/or "dude" but "bro" is sacred.
Whats up bro? (to longtime friend/friend who has your back and vice versa)
by iceb3rg August 19, 2009
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Verb: The act of one bro hanging with another bro or bros.
"Hey man, what are you doing today?"
"Nothing man, just broing with some of my bros."
by MattBallea December 24, 2011
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1. A phrase of encouragement from one person to another when there is hesitation to complete an act of manliness/machismo.

2. Can also be used to notify those in close proximity that an act of manliness/machismo is about to be completed by simply changing "Bro" to "Broing."
Example 1

Person 1: "I don't know if I can chug this gallon of milk guys.."

Person 2: "Bro for it!"

Example 2

Person 1: "Bill's broing for it!"
by Humanbeing89764 July 23, 2009
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