The manguage was developed for men by men and is used by men everywhere. For example; Mug (man hug), Mandals (man sandals), Muv (man luv), Muddle (man huddle), Molonel (man colonel).
A term to describe two guys (generally at least one het) who are in a very serious bromance. The two generally go on to rent an apartment and lead a bromarried lifestyle full of video games, watching Indiana Jones and, ideally, jerking each other off.
"Who's that TJ guy who's always with Sam lately? I thought he was straight."
"Yeah, they're straight, but practically mengaged."
A useful way for guys to get around the language barrier. Its basically a combination of grunts, hand gestures, and tone to achieve perfect understanding. Also a great way to infuriate women when you're with a friend who gets it.
Man #1 - Umph uhn uh, hah!
Man #2 - Pfft! Arg cha guh. *points*
Woman #1 - Oh my god you guys stop using manguage or we're going back to the car.
Woman #2 - Yeah and no blowjobs tonight.
Man #1+2 - All right, fuck.