1. referring to a general state of machismo affecting persons over a vast geographical area.
2. a highly contagious state of brodaciousness, or brovado, raising levels of brogesterone to dangerous levels.
What began as a modest brodown soon escalated into a full-fledged mandemic as hordes of the broletariat, as well as the brogeousie, converged on the streets, almost as if the brozone layer itself were replete with brogesterone and raining it down upon bros en masse.
A hoard of pikeys who go around doing chavvy behaviour. Typically proletariat these underlings try to terrorise the streets of cities with ASBOesque behaviour. Often being very 'try hard'.
Charles: "James look at those hooded youths"
James: "Youths? They appear to be are age?"
Charles "You know what I mean, pikeys, rif raf, underlings, proletariat."
James: "Yes, they seem to have formed some kind of mandem"
A term mainly employed little urban shits to describe groups of other dickheads. Very cringeworthy to hear this if you arent interested in their way of speaking.
'yo bruv you seen dat man... literally... brap'
'yeh e wiv dat dem mandem innit... '