Top Definition
Origin: Portland, Oregon between two great friends.

1. A bro, so bro-ish in your council of bro's, that his bro-ness radiates.

2. A bro having an widespread effect to guide you away from danger, away from the hiroshima's.

3. Bro that is your wingman when needed, your secret service bro when shots are taken from the opposite sex

In essence, this term is used for the Medal of Honor Ultimate Compliment for a Bro.
A: "Bro, thank you for distracting girl I've been dating while grabbing other girls number. Youre BroSoShima"
B: "Shima Cloud"
by GooseMaverick March 23, 2011

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