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One who protects his Brother from the world, and other people.

The Big Brother or the family.

The one who people question when his brother(s) mess up.
Guy: Where is that little bro of yours.

Big Bro: Why

Guy: He needs to explain why he was short on his money.

Big Bro: Ill answer for him.

Guy: Who he hell are you?

Big Bro: My Brothers Keeper.
by Brothers Keeper ninja January 30, 2010
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Jul 17 Word of the Day
A Bloomer is someone with a bright outlook on life who is optimistic in nature. Bloomer's frolic in every opportunity to be happy and try to make the most out of life. The opposite of a Bloomer is a Doomer. The term Bloomer originated specifically as a counter to the Doomer on sites especially like 4Chan.
"After getting married he became a Bloomer."
by Le Cringe February 27, 2019
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3
To be the protector and overseer of a breathens safety as well as security’s an also sometimes even include health.
My brothers in arms are solid mercs, as they are true to a brothers keeper.
by Titus dyfilid February 18, 2019
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4
Brothers Keepers, abbreviated as BK, is a gang based in Surrey, British Columbia that has recently started in the past few years. It has since spread to all around the Lower Mainland, other parts of British Columbia, and Ontario where it has ties to various gangs there.
Man 1: Yo have you heard of that mans that got shot?
Man 2: Yeah I heard he was part of BK
Man 1: BK what's that?
Man 2: Oh it's Brothers Keepers that gang that has Surrey jacks
by 604Mans October 18, 2020
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