furphy vs grapevine

furphy

noun
  • A rumour, or an erroneous or improbable story. 

grapevine

noun
  • A rumor. 

  • A leglock. 

  • The plant, a vine of genus Vitis, on which grapes grow. 

  • A move in which the feet are alternately placed in front of each other, while both remaining on the ice or ground, incorporating half-turns. 

  • An informal person-to-person means of circulating information or gossip. 

verb
  • To restrain in a leglock. 

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