Bro-ing Out - Akin to a bro's version of "Girls Night Out", but with less kissing and boob-grabbing.
Brode - Bro Code. "If bro_#1 wants to date bro_#2's ex, he is obligated to ask. Bro_#2 is then in turn obligated to say Yes."
Bromosexual - A bro that is also a chick, and therefore bang-able.
Broner - Over-excitement for any bro-ing out activity. "Eddie popped a total broner when Jimmy rented out the Laser-tag pavillion..."
Bronoculars - A safety devise used to counteract another Bro's Beer Goggles. "If it weren't for my bronoculars, Harry would have rumped a total ugmo!"
The P-L-Bro - A group of bros occupying the same brocation as your brommunity.
Quid Pro Bro - A more or less equal exchange of goods or services between bros. "You can borrow my bike, but I get to tag your sister, Jenny."
Brophylactic - An agent, device, or measure that protects a bro from unwanted contact. "Don't be a ding-dong, cover your schling-schlong."
Their own personal "vocabulary"
Sesh-- a makeout "seshion"
Rail-- have sex with
Shmammered-- really drunk
-Oh hey BRAD. Dude you were soooo shmammered last night!
-I knoooww!! i totally seshed that beat girl, Tracey.
-Bro... You railed her.
-OH SHIT MANN!!!!
Bro2: "i know bro, he needs to brush up on his brocabulary for sure"
Dude #2 - "Nah dude, that was BROsama Binladen.
Dude #1 - "Oh okay, but I asked him if he wanted some BROtato chips and he declined."
Dude #2 - "You're so BROmosexual, man.
Dude #1 - "I hate when you use Brocabulary on me..."