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1.
Mainstream is what's the new trend. when one "style" gets old, a new one is reborn, a mainstream person is someone who jumps from trend to trend so that they fit in with the rest of the crowd. Mainstream is being what society thinks you should be, and look like.
Avril lavigne took the casual wearage of the tie,something "underground" and unique, and turned it into something everyone wears, she turned it into something "normal", a trend. mainstream.
by Emily Pormann July 15, 2003
 
2.
A gigantic brainwashing cover that the media and the government uses to blindly mislead people into all going the same way. Mainstream should die. I hate people nowadays because they are all the same: Same trend, same bland as pigshit personalities, and same predjudice. Rap is known for influencing mainstream. So is Hip-Hop.
Mainstream should die.
by BOFH November 29, 2004
 
3.
Main•stream (mAn’strEm’), n., adj.

1) A genre in music and other forms of media that is often defined by widely-accepted and currently-popular standards, trends, and hypes that have been established by the media, typically resulting in the promotion of superficial traits.
My popular friends accept me because I'm hot and I like all the mainstream artists on MTV.
by Essix April 16, 2005
 
4.
Mainstream is the larger public, the masses, the big crowd. Things that are or become 'mainstream' are the things that currently sell the most and gain the most popularity.
Hip Hop has become mainstream and is being worn-out by the masses
by Diamond Princess July 01, 2004
 
5.
What most people like. Not always bad because everyone likes it. Often is curropted by things like MTV
MTV killed good mainstream music
by Whatever... April 07, 2005
 
6.
The brainwash big businesses put out. They feed young adults with worthless movies and music. The trend. All very fake, they put out whatever is in style. Many are too filtered out by the mainstream's brainwash to wake up.
Very few mainstream artists are worth listening to.
"Reality" Tv shows would be an example. They saw how people watched Survivor, and they fed off it.

"Swimming in the mainstream- Is such a lame, lame dream." - Rollins/Black Flag
by Zack August 03, 2004
 
7.
A term used to describe when a "underground" genre of musical expression has been fully embraced by the public media through aggressive advertising (aka MTV). Following this phase, the style begins to rapidly plummet in popularity while the ravenous leeches and posers choose to find a new fad to gnaw upon.

During the "Golden Years" of a mainstream topic, the genre recieves praise in record numbers, often represented by record numbers of identity-free morons with nothing to make themselves "stand out". It gains brief immortality during this phase, with not enough love, and not enough hate to dislodge it.

Only when the "haters" prevail in larger numbers in proportion to fans will the death sentence of a genre be finalized.
Rap music still hasn't died because for a decade, it has worked secretly to poison the urban population with wife-beating lyrics and brain-damaging rhythmes, making a permanantly imprint on the inner-city folk.

Very devilish plan indeed...
by Chang Tan May 15, 2005