indigestible vs sicko

indigestible

adj
  • Difficult to accept; unpalatable. 

  • Difficult or impossible to digest. 

noun
  • Anything that is difficult to digest. 

sicko

adj
  • Characterized by depraved tastes or habits; deviant. 

noun
  • A person with unpleasant tastes, views or habits. 

  • A physically ill person. 

  • A mentally ill person. 

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