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1 definition by Maryanne Goff

 
1.
Somebody that only likes music that is mainstream and will probably just get worn-out soon. A person that usually just follows trends. Mainstreamers don't always have a lot creativity to listen to underground material.
Mainstreamers: Wow this extremely popular and over-advertised new music album rocks!
by Maryanne Goff April 05, 2007