pocket pool vs self-love

pocket pool

noun
  • The act of manipulating one's genitalia through a trouser pocket; masturbation. 

  • A variation of the game of pool. 

self-love

noun
  • Masturbation. 

  • Regard for oneself; love of oneself. 

  • Excessive pride or vanity, overvaluing the self. 

How often have the words pocket pool and self-love occurred in a corpus of books? (source: Google Ngram Viewer )