NOT THE DEFINITION FOR DOUCHEBAGS.
Your bro is your homie(s) for
life. Calling someone your bro declares automatically that you are down for
life, that your bros come directly in front of thy hoes. Choose carefully who you declare as your bro, because some
people could intercept this very wrongly and it could backfire. You could call strangers you interact with "man" and/or "dude" but "bro" is sacred.