Slang for "commercial," with reference to works of music, art, or culture. Derogatory. Implies more money went into producing the thing than imagination went into conceiving of it. A term frequently used by 1980s San Pedro, CA punk band the Minutemen (whose second last album was called "Project Mersh").
"Are you kidding? I'd never listen to mersh stuff like Justin Beiber."
by FancyACorndogBro? August 15, 2011