Slinky vs limber

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. 

limber

noun
  • A two-wheeled vehicle to which a wheeled artillery piece or caisson may be attached for transport. 

  • The shafts or thills of a wagon or carriage. 

  • Gutters or conduits on each side of the keelson to allow water to pass to the pump well. 

verb
  • To cause to become limber; to make flexible or pliant. 

adj
  • Flexible, pliant, bendable. 

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