rubber duck vs speedboat

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. 

speedboat

noun
  • A boat used for waterskiing. 

  • A fast boat, usually small (for 1-8 people). 

  • A boat designed and built for racing. 

verb
  • To travel by speedboat. 

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