boff vs slammer

boff

noun
  • A hit or smack. 

  • 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. 

verb
  • to have sexual intercourse (with someone) 

  • To hit; to strike. 

slammer

noun
  • One who, or that which, slams. 

  • One who competes in a poetry slam. 

  • A tequila cocktail that is slammed onto a surface to induce fizzing. 

  • One who takes part in slam-dance. 

  • In the game of Pogs, the heavier piece used to strike the stack of counters. 

  • jail, prison. 

  • A slam-door train. 

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