barn dance vs boff

barn dance

verb
  • To take part in barn dancing. 

noun
  • A type of set step routine dancing, such as square dance. 

boff

verb
  • to have sexual intercourse (with someone) 

  • To hit; to strike. 

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. 

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