The group of people known as bro's. Bro's tend to dress the same because they dont have any creativity or style of their own. Hence, Bro-bots.
group of bros move in direction of metal party Metal Bob: whoa... theres an army of... BRO-BOTS!
Metal Dave: Shit man, talk about attack of the clones!
bro's: YO digity-daaaaaaawg! Let us in.
Metal Bob: Hell no, no bro's allowed.
bro's: does not compute. system overload.