1 definition by Tubamstr

Top Definition
The most bitchin' activity in school. Fuck sports, fuck acting, MB is the shit
Brass kicks ass
Tubas are gods
Jock: ha you're in MB, loser
MB member: laugh all you want bitch, i'd like to see you count a sixteenth note triplet in 7/8 time
jock: uh.... count a what?
by Tubamstr June 02, 2005

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