bosh vs hot air

bosh

noun
  • Nonsense. 

  • The lower part of a blast furnace, between the hearth and the stack. 

  • A fiddle (musical instrument). 

intj
  • An expression of disbelief or annoyance. 

  • An expression of speedy and satisfactory completion of a simple or straightforward task. 

verb
  • To consume (illicit drugs). 

hot air

noun
  • Empty, confused, or exaggerated talk lacking meaning or substance; bluster. 

  • Air that has been heated, especially so as to function as the lifting agent of a hot-air balloon. 

How often have the words bosh and hot air occurred in a corpus of books? (source: Google Ngram Viewer )