lick one's chops vs long for

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. 

long for

verb
  • To have a desire for (a thing or an event). 

  • To miss (someone). 

adj
  • likely to remain for a long time 

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