boff vs leather

boff

verb
  • To hit; to strike. 

  • to have sexual intercourse (with someone) 

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. 

leather

verb
  • To strike forcefully. 

  • To cover with leather. 

  • To spank or beat with a leather belt or strap. 

adj
  • Made of leather. 

  • Referring to one who wears leather clothing (motorcycle jacket, chaps over 501 jeans, boots), especially as a sign of sadomasochistic homosexuality. 

noun
  • A punch. 

  • A piece of the above used for polishing. 

  • A tough material produced from the skin of animals, by tanning or similar process, used e.g. for clothing. 

  • A cricket ball or football. 

  • A good defensive play 

  • clothing made from the skin of animals, often worn by motorcycle riders. 

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