Top Definition
A religion in which music is god.
I'm not a follower of the Catholic church anymore. I converted to Musicism.
by DamnDamnLeash August 14, 2009
n. Discrimination against a person or a genre based on one's unfavorable taste towards that genre of music.
"You can't ban punk! That's like racism, 'sept with music--it's musicism!"
by IllustriousPotentate November 01, 2005
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