bro

A Bro is a person who would give you the shirt off his back when he doesn’t want to wear it anymore. A Bro is a person who will bend over backwards to help you bend someone else over backwards. In short, a Bro is a lifelong companion you can trust will always be there for you, unless he’s got something else going on.

Barney Stinson is a total bro. I didn't even know what a bro was until I read "The Bro Code."