Synonymous with "sausage fest", a broshow is when there is an abundance of penis wielding humans at a party/club/bar. The phenomenon causes hardship when trying to seek out a female since the competition is almost as fierce as a Roman Colosseum Battle Royale.
Bro 1: "Holy fuck man look at that girl over there getting flocked like she's a fucking french-fry in a crowd of seagulls."
Bro 2: "True man, this is such a fuckin' broshow, let's dip."
Girl 1: "I'm the only girl here, I'm going to put myself on a pedestal now because I love getting attention from everyone."
Girl 2: "Were such fucking cunts, I love broshows."