put someone's lights out vs zonk

put someone's lights out

verb
  • To cause someone to become unconscious, especially by striking him or her. 

zonk

verb
  • To make (someone) sleepy or delirious, to put into a stupor . 

  • To hit hard . 

  • To become exhausted, sleepy or delirious. 

noun
  • The feeling of a drug taking hold. 

  • An unfavorable card or token, or undesirable or worthless item used as a prize in a contest or game show (such as Let's Make a Deal). 

  • A cigarette hand-rolled from tobacco and cannabis. 

How often have the words put someone's lights out and zonk occurred in a corpus of books? (source: Google Ngram Viewer )