brillo pad vs dishrag

brillo pad

noun
  • A scouring pad used for cleaning dishes, made from steel wool containing soap. 

  • The hair on the scalp of a black person. 

  • A black person. 

dishrag

noun
  • A piece of cloth used for washing dishes. 

  • An unclean person; used in similes. 

How often have the words brillo pad and dishrag occurred in a corpus of books? (source: Google Ngram Viewer )