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1.) 'Unidentified Flexing Bro'. Any unknown bro wearing a poorly-made 'muscle shirt' tank tops that exposes their arms and torso and precedes to flex in public places in order to compensate for the lack of muscle they really have. UFBro's are sighted with double faux diamond earrings, buzz-cut haircuts, and reek of countless, unnecessary protein shakes.

2.) 'Unidentified Flying Bro'. Any unknown bro that achieves flight through air due to being thrown during an intoxicated fight with other bros. UFBro sightings are usually in heavily bro-populated areas such as fraternities and college football games.
1. Dude, I saw this U.F.Bro. at the dining hall today. Complete scrawny douche flexed as he was humming Lil' Wayne lyrics in the cashier line.

2. Hey man, there was a U.F.Bro. sighting at the ATO's Friday night. Dude was some freshman, but he must have flown 20 feet through the air until he crashed into the Keystone beer can pyramid.
U.F.Bro. by Charles_the_Chef September 14, 2010
Related Words
bro brooke Brooklyn brody brock brook brojob bromance Brodie Brown

Bag me bro

A phrase or term used in which you have no other ways of getting luck and resort to getting teabagged by your friends and that will somehow turn out good for you.
"Shit, a hunter! Bag me bro!" - Halo Reach
Bag me bro by idkjustdealwithit August 22, 2011

Flack Jacket Bro

A bro who survives a run-in with a semtex grenade.

Flack Jacket Bro pays tribute to the use of Flak Jacket Pro to reduce explosive damage in the Modern Warfare video game series, the same series which made semtex grenade popular.
"Dude, after I jumped on that grenade for you the other night she ended up morphing into a full fledged semtex grenade. Been blowing up my phone all day. She finally quite after I answered and told her in a Spanish accent that she had the wrong number."

"Nice work, bro. Way to be rocking Flack Jacket Bro."
Flack Jacket Bro by nar1763 December 14, 2011

Flow-to-bro ratio 

How much of a bro someone with a gnarly flow really is. Usually measured on a scale of 1-10. A bro who lands himself a 10 would often be considered head of dudes in most scenarios requiring some sort of leadership and would be conidered a bro by everyone. The ratio in written form would be whatever number the bro achieves followed by a ":" and then the word flow. Ex. 6:Flow
Bro 1: Dude, that bro has some gnarly locks..

Bro 2: I agree but ive talked to him before and his flow-to-bro ratio is only like 4:flow.

Bro 1: Thats too bad, I thought he would be more of a bro...

Seeing eye bro 

When two bros come across a very attractive female and one has to hold the other bro so that he can then keep admiring the female without running into obsticles.
This babe is a dime! Be my Seeing eye bro so I can examine that back half, bro!
Seeing eye bro by Lackdaddy January 31, 2016

no beef bro 

a brodude way of saying 'no problem' and assuring the other bro that there will be no troubles or drama as a consequence of your good act
Bro #1: Thanks for letting me talk to you about my feelings bro.
Bro #2: No beef bro.
Bro #1: I love you bro.
Bro #2: Love you too.
no beef bro by brezjnev July 24, 2017