A bro is a very important person to have in life. A Bro is a person who always has your back and that helps you make good choices in life. They help you through good times and bad and will always pick you up when you have fallen down. No matter what happens that bro will never give up on you and carry you out of the battlefield, dead or alive. A bro, a lover, care taker, and a person you can trust. Dudeology.