Top Definition
When the music you listen to isn't mainstream, meaning played on the radio and the vh1/mtv countdowns but not scene, meaning they have a very tight fan base.

Bands like All Time Low, Cobra Starship, etc.
Hey, let's go to the atl conecert.

--Nah, that's too mainstream to me.

No, they're mainscene.
by irrevocably-roo April 18, 2009
4 Words related to mainscene

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