amorous vs rock hard

amorous

adj
  • Inclined or having a propensity to love, or to sexual enjoyment. 

  • Indicating love or sexual desire. 

  • Of or relating to, or produced by, love. 

rock hard

adj
  • Having a very fully erect and stiff penis 

  • With strongly held beliefs and opinions, deep conviction. 

  • As tough, hard, or inflexible as a piece of rock. 

  • With muscles developed and toned to a high degree, especially the muscles of the abdomen. 

How often have the words amorous and rock hard occurred in a corpus of books? (source: Google Ngram Viewer )