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mallcore

British  
/ ˈmɔːlˌkɔː /

noun

  1. informal  a disparaging term for nu-metal

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of mallcore

C21: mall (because it is supposedly enjoyed by teenage goths who congregate in shopping malls) + ( hard ) core