erect penis vs turgescence

erect penis

noun
  • a penis that is engorged with blood 

turgescence

noun
  • The act of swelling, or state of being swollen or turgescent. 

  • Empty magnificence or pompousness; inflation; bombast; turgidity. 

How often have the words erect penis and turgescence occurred in a corpus of books? (source: Google Ngram Viewer )