1 definition by a guy on urban dictionary

Top Definition
NSB
NSB is shorten way to say NOOBS SCHOOL BUS its basically the place where all noobs are condemned to be until they get the school the drivers are those who obviously take noobs to school after they pwn them NSB passengers suck at life
man1 : ha ha no scope just put u right on the NSB
man2 : f u (thinkin: just got pwnd now im on the damn bus ihud)
by a guy on urban dictionary May 26, 2009

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