call it a night vs pop off

call it a night

verb
  • To cease what one has been doing for the night. 

  • To go to bed to sleep. 

pop off

verb
  • To turn off. 

  • 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 leave and return in a short time. 

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