oomph vs sex appeal

oomph

noun

  • Sex appeal. 

  • A bassy grunting or thudding sound. 

  • Strength, power, passion or effectiveness; clout. 

verb

  • To produce a bassy grunting or thudding sound. 

sex appeal

noun

  • Sexual attractiveness. 

How often have the words oomph and sex appeal occurred in a corpus of books? (source: Google Ngram Viewer )