lick one's chops vs wait on

lick one's chops

verb
  • To anticipate something eagerly. 

  • To use one's tongue to remove moistness from the sides of one's mouth, as when salivating or at the conclusion of a meal. 

  • To look forward avidly to eating something. 

wait on

verb
  • To wait for (a thing, or an event to take place). 

  • To provide a service to (someone); to act as a servant to (someone); to serve (someone) as a waiter or waitress in a restaurant. 

  • To wait for (a person). 

  • To fly above its master, waiting till game is sprung. 

  • To be in store for (someone). 

How often have the words lick one's chops and wait on occurred in a corpus of books? (source: Google Ngram Viewer )