garbage vs scoria

garbage

noun
  • A place or receptacle for waste material. 

  • An easy shot. 

  • Food waste material of any kind. 

  • Something or someone worthless. 

  • Useless or disposable material; waste material of any kind. 

  • Nonsense; gibberish. 

adj
  • bad, crap, shitty 

scoria

noun
  • The slag or dross that remains after the smelting of metal from an ore. 

  • Rough masses of rock formed by solidified lava, and which can be found around a volcano's crater. 

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