Top Definition
A band started by Adam "Adrock" Horovitz and Amery "AWOL" Smith. Adam, a member of Beastie Boys, and Amery, the Beasties' tour drummer, originally formed the group as a coast-to-coast beat exchange. Sometimes written as "BS 2000".
Dude, go listen to some BS2000.
by Eden January 28, 2003

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