pervy vs sicko

pervy

adj
  • Behaving or looking like a sexual pervert. 

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 pervy and sicko occurred in a corpus of books? (source: Google Ngram Viewer )