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a bro', dude or best bud who plays bongos, congas or other hand percussion instruments, especially one with whom you jam, play, or hang with often.
"Hey, man, I want you to meet my bongo brother, Brio--we've played together for over 20 years."

"Yeah, we've been in the band longer than some people have been married!"
by bongoman January 09, 2008