The stuff in a man's DNA that allows him to share information surreptitiously with other males.
EXAMPLE 1:
Guy 1 to Guy 2: That was a nice space to get out in.
(intrinsically implying that in the past few moments a guy could have scratched, worked out, or rested his eyes)
Guy 2 to Guy 1; Yep.
(he's pretty much indifferent when it comes to all that stuff but agrees it could have all happened.)
Girl in the Back Seat: Are you guys talking about sex? I don't have BROMATIN like you.
EXAMPLE 2:
A lady is easily fooled into thinking a man is simple to understand, but a female can't help but be misguided due the the presence of BROMATIN on his Y chromosome.
When you use beer as a marinating sauce for bratwurst. The food product can then be called beer meat. Beer bratting is a mancraft.
"These brats here, you beer bratting them, fuck?"
"Mang, I nated these suckas with Miller High Life then fucked two chicks and now I'm dead."
"You is suitable for non-gay gay marriage because that's fucking TIGHT shit."
"Whatev."
When one or more bros gather and collectively deem themselves as "amazing" just by being together. (ie: Bros being together automatically makes them amazing)
When you take care of your friends who have had far too much to drink. This goes above and beyond the simple task of being the designated driver as it includes but is not limited to:
Making sure they don't get into fights
Making sure if they do get into a fight, damage received is minimal, while damage inflicted is maximal.
Taking lots of pictures while they're throwing up in random places
Brositting Mike was hard enough, but then when Chris had too much to drink it almost got out of control.