ass-licking vs tossed salad

ass-licking

noun
  • Anilingus. 

  • Sycophancy. 

tossed salad

noun
  • An act of anilingus. 

  • A salad made by tossing greens in a dressing, often including other vegetables like tomato and cucumber. 

How often have the words ass-licking and tossed salad occurred in a corpus of books? (source: Google Ngram Viewer )