1 definition by whynot138

1.A sibling related to you by blood. Someone who you stick your neck out for, and who does the same for you.
2.Someone non-related to you, but who cares about you, like a brother, and who you care about like a brother.
1.*Via text* Hey, bro, our parents aren't pissed anymore, come home.

2.I've known John Doe for so long, he is like my brother.
by whynot138 June 22, 2011
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