expunge vs rasher

expunge

verb
  • To erase or strike out. 

  • To eliminate completely; to annihilate. 

  • To delete permanently (e-mail etc.) that was previously marked for deletion but still stored. 

rasher

verb
  • To cut into rashers. 

noun
  • A strip, a piece (of something, such as ham, bacon, etc). 

  • A strip of bacon; a piece of bacon. 

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