dry as a bone vs parching

dry as a bone

adj

  • completely dry; totally dry 

parching

adj

  • Causing something or someone to parch; extremely drying. 

  • Very thirsty; parched. 

noun

  • The condition of being parched; absolute dryness. 

  • The process of parching or roasting something, such as corn. 

How often have the words dry as a bone and parching occurred in a corpus of books? (source: Google Ngram Viewer )