beanbag vs piper

beanbag

noun
  • A testicle. 

  • A piece of soft furniture consisting of a leather or vinyl covering stuffed with dry beans or other similar pellets. 

  • A type of juggling ball usually made from leather or cloth stuffed with dry beans. 

  • A small cloth bag filled with dry beans, used as a toy or for exercising the hands. 

  • An idiot. 

piper

noun
  • A baby pigeon. 

  • A bagpiper. 

  • A musician who plays a pipe. 

  • A common European gurnard (Trigla lyra), having a large head, with prominent nasal projection, and with large, sharp, opercular spines. 

  • A sea urchin (Cidaris cidaris) with very long spines, native to the American and European coasts. 

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