Brodeo (n.): A get-together or bacchanalia (might need to google that one, too) in which the attendance is predominantly or entirely male.
"Bro, way too many dicks on the dance floor out there, this party blows.
What bro, is this your first brodeo?"
And your official bro-quote of the week (month):
"The broportant thing is to not stop questioning."
-Albert Einstein, Brosquire