A scale of 1-10 to rate your buddies on what type of "Bro" they are
Points may be added or deducted depending on the conduct of that "bro"
for instance if a guy is rated 3 on the bro scale he is not a very good friend where if he was rated a 9 he is a close buddy that is always there for you.
"Bro-Scale" may also be called when a guy acts not in a "Bro" manner. This can be said to him to let him know that he is losing points on the bro scale
Guy 1: you ready to get wasted tonite?
Guy 2:Nah I think im gonna stay in with my Girlfriend and watch the note book.
Guy 1: Bro-scale...