In the music industry, when the "sound guy" makes an opening band sound bad (by poorly mixing them) to make the headlining band sound better.

The practice is mentioned in Five Iron Frenzy's song "Blue Mix" from the album "Electric Boogaloo." Lead singer Reese Roper disclosed the song's meaning in the November/December 2001 issue of HM (Hard Music) Magazine.
Blue mixing these next few bands will help us out Joel, we don't want these kids to forget who the main event is...
by toothandnailrocker June 28, 2010
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"what you get when you mix blue and yellow?"
"dat supa green"
"don't forget the red hairs"
by im glenjamin December 4, 2006
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