The act of asking your bro to confirm a girl's attractiveness before taking her home (more commonly done when you are more drunk than your bro)
I had like 12 beers and was about to bring this girl back to my apartment but I needed a brofirmation from Sam before I could take her home. He gave me the brofirmation so we left the bar and went to my place.
Noun. Broformation is perceived wisdom that a male derives from his friends (otherwise known as "Bros") concerningcircumstances or issues in his life (mainly concerning women). Broformation can come from a single source, though most commonly it is given by a group consisting of 3 or more.
Man: Hey guys, I need some broformation on this chick I'm talking to. She's cool but I think she really wants a relationship right now. What should I do?