odalisque vs piece of crumpet

odalisque

noun
  • A desirable or sexually attractive woman. 

  • A female slave in a harem, especially one in the Ottoman seraglio. 

piece of crumpet

noun
  • A very sexually desirable woman. 

How often have the words odalisque and piece of crumpet occurred in a corpus of books? (source: Google Ngram Viewer )