hash vs nightmare

hash

verb
  • To make a mess of (something); to ruin. 

  • To chop into small pieces, to make into a hash. 

  • To transform according to a hash function. 

  • To make a quick, rough version. 

noun
  • The # symbol (octothorpe, pound). 

  • A hash run. 

  • A new mixture of old material; a second preparation or exhibition; a rehashing. 

  • A stupid fellow. 

  • One guess made by a mining computer in the effort of finding the correct answer which releases the next unit of cryptocurrency; see also hashrate. 

  • A confused mess. 

  • The result generated by a hash function. 

  • Food, especially meat and potatoes, chopped and mixed together. 

  • Hashish, a drug derived from the cannabis plant. 

nightmare

verb
  • To have a nightmare. 

noun
  • Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure. 

  • A very bad or frightening dream. 

  • A feeling of extreme anxiety or suffocation experienced during sleep; Sleep paralysis. 

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