dross
From Longman Dictionary of Contemporary Englishdrossdross /drɒs $ drɑːs, drɒːs/ noun [uncountable] 1 BADsomething that is of very low quality Most of the poems were pretentious dross.2 USELESSwaste or useless substances gold with impurities or drossExamples from the Corpusdross• Pupils here in the fifth year are generally thought to be dross.• Masterpieces of compression, they resonate with the concentrated power that can create diamonds from dross.• In other words, our enriched material is more than half dross.• In places the dross almost brushed the roof.Origin dross Old English dros