no way vs when pigs fly

no way

intj
  • Indicates astonished disbelief. 

  • Absolutely not; under no circumstances. 

noun
  • Used other than figuratively or idiomatically: see no, way.; not any possibility. 

when pigs fly

adv
  • Never. 

How often have the words no way and when pigs fly occurred in a corpus of books? (source: Google Ngram Viewer )