scrapheap vs wreck yard

scrapheap

noun
  • A pile in which junk is discarded. 

  • A junkyard. 

  • A collection of discarded or rejected items or ideas. 

wreck yard

noun
  • The location of a dismantling business where wrecked or decommissioned vehicles are brought. Their usable parts are sold for use in operating vehicles, while the unusable metal parts, known as scrap metal, are sold to recycling companies. 

How often have the words scrapheap and wreck yard occurred in a corpus of books? (source: Google Ngram Viewer )