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9.
A moment where two (or more) bros discover a commonality or some previously unknown bond. An instance of bro-revelation.
An exemplar of a broment from the movie "Step Brothers":

Dale Doback: On the count of three, name your favorite dinosaur. Don't even think about it. Just name it. Ready? One, two, three.

Dale Doback, Brennan Huff: Velociraptor.

Brennan Huff: Favorite non-pornographic magazine to masturbate to.

Dale Doback, Brennan Huff: Good Housekeeping.

Brennan Huff: If you were a chick, who's the one guy you'd sleep with?

Dale Doback, Brennan Huff: John Stamos.

Dale Doback: What?

Brennan Huff: Did we just become best friends?

Dale Doback: Yep!

Brennan Huff: Do you wanna do karate in the garage?

Dale Doback: Yep!
by manonfiredc November 17, 2010
 
1.
When dudes share a special moment with eachother.
The three guys all told eachother they were best friends; they shared a broment.
by joshinatorg January 23, 2009
 
2.
n: a moment between bros, usually regarding a sexual conquest, failed sexual conquest or planning a circle jerk
John: "Bro, you totally banged that skank last night."

Jim: "Yeah, bro, she was like: 'Yeah daddy! Give it to me!'"

John: "Whoa man, I'm totally getting wood thinking about it! Score!"

Janet: "I'm going to go. You two stay here and enjoy your broment."
by BTheWordMaker April 13, 2008
 
3.
A moment two bros share when their minds connect and they think the same thing at the same time.
"Bro dude that chick has a nice enough ass for a nice roll in the hay."
"BROMENT."
by therealbrofessor March 22, 2010
 
4.
An emotional moment between men
After watching mighty ducks, Adam banks couldn't hold his stick up, I then was brokent hearted with this broment
by Kvera February 28, 2010
 
5.
A legit moment with, or involving, bros.
"Bro, last night was so chill, I had at least three or four legit broments."

by Matthew Fratstar April 18, 2008
 
6.
n: A moment of extremely bro-ish behavior, usually involving alcohol and micturition; the state of being overcome with bro-ness
John: Dude, did you piss in my laundry hamper?

Dave: Oh...yeah. Sorry bro, I was pretty wasted last night.

John: It's cool bro; we all have our broments.
by The Bling Dynasty December 13, 2011
 
7.
(noun) An awkward instance between two heterosexual men who come a little too close for comfort, and for a nanosecond want to have sex with other. Usually followed by red-faced silence, brotherly punches, or light-hearted ribbing about each others mothers. The broment is never referred to again.
Used in California, maybe other places too.
"OMG, I think my boyfriend just had a broment with the quarterback!"
"No, football players always act that way."

(Thinking to himself) "Wow, I wonder if my best friend is still thinking about that broment. Maybe I could sexually experiment with him."

(Thinking to himself) "Wow, I wonder if my best friend is still thinking about that broment. I'm gonna kick that gay bomb's ass."
by jenomatic March 09, 2011