bone-on vs phallus

bone-on

noun
  • An erection of the penis. 

phallus

noun
  • A penis, especially when erect. 

  • A representation of an erect penis symbolising fertility or potency. 

  • The signifier of the desire of the Other, and the signifier of jouissance. 

  • A similar erectile sexual organ present in the cloacas of male ratites. 

How often have the words bone-on and phallus occurred in a corpus of books? (source: Google Ngram Viewer )