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The transitional phase in a man's life where he moves from being a casual and carefree "Bro" to a more mature and sophisticated "Sir". This metamorphosis is bound to happen sooner or later, even if the individual still crashes on couches or lacks direction. However, even after reaching the status of a "Sir", the remnants of the "Bro" still reside within him. Leaving the everlasting BroSir.
While opening a door for a 23-99 year old … bro turned Sir . After you BroSir

Congratulation!! on that new job BroSir

BroSir!! Congratulations on the promotion!

Wow!! Brosir, your own house!?
BroSir by Zo19w4 June 12, 2023
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A fellow homie that is no longer a Broski and has now been ranked up to a Broskr.
Kris: Yo, what's poppin Broskr?
Nick: Nothing much Broskr.
Kris: Alright catch ya later Broskr.
Broskr by BroskrKris May 31, 2017
Related Words

Brostratu 

People who take the TV show vikings too seriously.

Weak minded sheep following a trend insulting true followers of the asatru path and giving them a bad name with their garbage and TV drama brought to life.

Making claims to hold to virtues and creeds without following thru truly.
So tired of the brostratu on the interest giving good heathens a bad name.
Brostratu by kaosmoker September 30, 2018
A company of brothers, whose bravery and goodwill rival that of the cavalry of the Rohirrim. To be summoned whenever bros need to be gathered up.
"Oh no, Sam is in trouble. Summon the brohirrim!"
brohirrim by meng_m October 5, 2007

Brosistance

When a dude is having problems and calls on another dude for assistance.
Man I'm having major girl problems I need brosistance.
Brosistance by Face!!!!! July 25, 2009

Brostradamus 

A bro of such incredible wisdom that he can see into the future.
Jeremy: Dude, Arthur told me that this chick was gonna ask me out and she totally did it!
Brent: Yeah, he's a real brostradamus.

brosismance 

Like a bromance and a sismance but with a boy and a girl that have a awesome relationship but not in the relationship way.
Person 1 : WHOA did you see Bob and Becky?

Person 2: I KNOW!! They wont stop hanging out they totally have a brosismance.
brosismance by CEMPH April 24, 2011