more heat than light vs orgy

more heat than light

noun
  • More passion or conflict than enlightenment or illumination on a subject. 

orgy

noun
  • Excessive indulgence in a specified activity. 

  • Originally, secret rites or ceremonies, typically involving riotous and dissolute behaviour, including dancing, drunkenness and indiscriminate sexual activity, undertaken in honour of various pagan gods or goddesses (such as Attis, Bacchus, Ceres, Dionysus, Osiris, etc). 

  • A gathering of people to engage in group sex. 

How often have the words more heat than light and orgy occurred in a corpus of books? (source: Google Ngram Viewer )