beer mat vs sledge

beer mat

noun
  • A small square cardboard mat, often with an advertisement for a brewery on it, that is used to rest one's glass on, and to protect the surface of a table or a bar in a pub. 

sledge

noun
  • A card game resembling all fours and seven-up; old sledge. 

  • An instance of sledging. 

  • any type of sled or sleigh. 

  • A low sled drawn by animals, typically on snow, ice or grass. 

  • A heavy, long handled maul or hammer used to drive stakes, wedges, etc. 

verb
  • to hit with a sledgehammer. 

  • To drag or draw a sledge. 

  • To verbally insult or abuse an opponent in order to distract them (considered unsportsmanlike). 

  • To ride, travel with or transport in a sledge. 

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