Slinky vs sledge

Slinky

noun
  • A toy in the form of a loose metal (originally) or plastic spring that can be made to "walk" down stairs as its coils separate and close up. 

sledge

noun
  • An instance of sledging. 

  • any type of sled or sleigh. 

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

  • 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 Slinky and sledge occurred in a corpus of books? (source: Google Ngram Viewer )