pop off vs walk off

pop off

verb
  • To leave and return in a short time. 

  • To release flatulence, generally in short rapid succession. 

  • To perform extremely well (in a video game or other activity). 

  • To die suddenly. 

  • To thrust away, or put off promptly. 

  • To speak frankly. 

  • To kill someone. 

  • To fire or launch (a shot, projectile, or missile), especially singly or in small bursts. 

  • To turn off. 

walk off

verb
  • To flee or abandon. 

  • To measure a distance by walking, as by counting paces or extending a measuring tape or rope. 

  • To recover from (a minor injury) or digest (a large meal) by walking around. 

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