boff vs revelation

boff

noun
  • A great success; a hit. 

  • A pupil who works hard; a swot. 

  • A line in a film etc that elicits such a laugh. 

  • A big laugh. 

  • A hit or smack. 

verb
  • to have sexual intercourse (with someone) 

  • To hit; to strike. 

revelation

noun
  • Something that turns out to be a great success. 

  • Something dramatically disclosed. 

  • A manifestation of divine truth. 

  • The act of revealing or disclosing. 

  • Something that is revealed. 

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