bro-in 

The act of getting several new girl-friends in small amount of time.

Did you hear that Kyle broke up with Heather and is dating Allie?

Damn, he must be bro-in!

bro-in by Toodles4060 June 19, 2011

bro'in 

This AIM conversation probably sums it up better than anything else:


my friend: i was talking with this Frat Star named phil who explained a concept that i've unknowingly lived by for a while subconciously
my friend: called Bro'in
my friend: which is dumb as shit
my friend: basically just mack on all the girls around you becuase they exist and it doesn't matter if you're truly interested or not
my friend: you did it because eventually as you're pusssampling, you find the right one
me: pussssampling?
my friend: my word not his
my friend: you just try to get the girl and when she signals that she's yours, you find another girl and ruin her happiness. it works like this: :-) (you like a girl) :-D(you get a girl) :-*(you kiss the girl) :-! (you do nasty with the girl) =-O(you show the girl your "OFace"):-X(you drop seed in the girl's mouth sealing it shut) :-\(you tell the girl it's over, there's someone else) :'((the girl cries)O:-)(you shoot her with a cross bow and she goes to heaven) 8-)(you've successfully accomplished Bro'n)

Bro'in is the highest form of existence for frattastic bros

bro'in by tupacodaman October 4, 2008

bro in the dark

A bro who’s never tan, and is so white that he looks like he could glow in the dark.

“Justin needs to take his shirt off and get a tan—if he doesn’t he’ll bro in the dark.”

bro in the dark by sebastian crucial December 7, 2006

Bro in the Dark

When you are bro'in out and the power shuts off. This of course renders a Gamecube useless so super smash melee is impossible. This forces bros to argue over RISK strategies and often leads to accusations of dick in mouth. Bros will eventually proceed to tire, fall asleep, and wake up renewed to bro out once the power returns.

Those bros in suite B3C were totally Bro'in out when the power shut off. I heard Phil thinks starting with Australia is a poor strategy if you want first place, but Mike blames this opinion on the dick in Phil's mouth. I wish I could Bro in the Dark!

Bro in the Dark by Oznec November 4, 2008

bro-in-law

A girlfriend that is a future candidate as one of your bro's wife.

Bro, you have to respect my girlfriend. She's possibly your future bro-in-law!

bro-in-law by xx_KittyKat_xx December 23, 2011

bro'in up 

to grow up in a bro-like fashion. To be a more experienced bro

-DUDE! Look how old you are! You are all bro'd up!
-Keep it up, and you'll bro up like me.
- You're bro'in up!

bro'in up by MaxIMUM March 12, 2012

Bro in the Know 

Someone privy to the same secrets as you are; a fellow initiate.

If you're looking for good herbs, I've been out of that business for a long time. But that doesn't mean I can't help you... let me call my Bro in the Know.

Bro in the Know by JohnnyApocalypse May 15, 2014