canoe vs rubber duck

canoe

noun
  • Any of the deflectors positioned around a roulette wheel, shaped like upside-down boats. 

  • An oversize, usually older, luxury car. 

  • A small long and narrow boat, propelled by one or more people (depending on the size of canoe), using single-bladed paddles. The paddlers face in the direction of travel, in either a seated position, or kneeling on the bottom of the boat. Canoes are open on top, and pointed at both ends. 

verb
  • To ride or paddle a canoe. 

rubber duck

noun
  • An inflatable boat. 

  • A toy, made from rubber or rubber-like plastic, shaped like a duck; usually a floating bathtub toy. 

verb
  • To act as a sounding board for a programmer that is debugging their code, facilitating rubber duck debugging. 

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