bouncy-bouncy vs roll in the hay

bouncy-bouncy

noun

  • Sexual intercourse. 

roll in the hay

noun

  • A session of sexual intercourse. 

  • Used other than figuratively or idiomatically: see roll, in, the, hay. 

How often have the words bouncy-bouncy and roll in the hay occurred in a corpus of books? (source: Google Ngram Viewer )