lip-smacking vs scrumptious

lip-smacking

adj

  • Tasty; appetizing. 

adv

  • Very. 

noun

  • The act of smacking one's lips 

scrumptious

adj

  • Delicious; delectable. 

How often have the words lip-smacking and scrumptious occurred in a corpus of books? (source: Google Ngram Viewer )