When someone is being extremely bro like or an area(usually bon fire parties, regular house parties, or local venues when scene bands are playing) becomes ridiculously over run with a large amount of bros and bro hoes in a extremely short amount of time
"We had 2 full kegs of Bud Light until that Bro-Storm occurred."
Bunch of averagewhiteguys brainstorming a convoluted solution to a complex problem while ignoring the simple obvious solution right under the noses
"Peak brostorming: Pontificating on how your industry is collapsing while continuing to pay executive salaries and golden parachutes in the tens of millions of dollars."
"I'm on an earnings call with all whitemen and they are brostorming how to increase profit margins - meanwhile Taylor Swift's tour is the biggest earning tour in history. INVEST IN WOMEN."