When two bros consummate their bromance, usually through copious amounts of drinking complaining about women problems and/or with a bro hug accompanied by an "Dude, I love you man!"
Bro 1: "Dude, I love you man!"
Bro 2: "Dude, I love you too! We don't need those girls anyway!"
Onlooker 1: Why are those two frat guys bro hugging?
Onlooker 2: They just got dumped by their girlfriends, so they came here to drink away their sorrows. But they just ended up having a bromotional hook-up.