boff vs shellac

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. 

shellac

verb
  • To beat; to thrash. 

  • To coat with shellac. 

  • To inflict a heavy defeat upon. 

noun
  • A processed secretion of the lac insect, Coccus lacca; used in polishes, varnishes etc. 

  • A beating; a thrashing. 

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