bombast vs mumbo jumbo

bombast

noun
  • High-sounding words; language above the dignity of the occasion; a pompous or ostentatious manner of writing or speaking. 

verb
  • To use high-sounding words; to speak or write in a pompous or ostentatious manner. 

  • To swell or fill out; to inflate, to pad. 

adj
  • Big without meaning, or high-sounding; bombastic, inflated; magniloquent. 

mumbo jumbo

noun
  • Any confusing or meaningless speech; nonsense, gibberish. 

  • Any object of superstition; religious words and/or actions which are seen as superstitious or fraudulent. 

  • A deity or other supernatural being said to have been worshipped by certain West African peoples; an idol. 

How often have the words bombast and mumbo jumbo occurred in a corpus of books? (source: Google Ngram Viewer )