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1) Marrying your brother
2) Marrying a guy with the same name as your brother.
I married my brother Charles.... he is now my brosband!
by MAGNABOOL December 17, 2009
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When two men become more than best friends but less than lovers has no problem showing the other affection the relationship past bromance
"No roys not my best friend he is my brosband "
by Indian jake January 24, 2017
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