flapper vs prong

flapper

noun
  • The hand. 

  • A young girl usually between the ages of 15 and 18, especially one not "out" socially. 

  • A young game bird just able to fly, particularly a wild duck. 

  • A flipper; a limb of a turtle, which functions as a flipper or paddle when swimming. 

  • A flapper valve. 

  • One who or that which flaps. 

  • Any injury that results in a loose flap of skin on the fingers, making gripping difficult. 

  • A young woman, especially when unconventional or without decorum or displaying daring freedom or boldness; now particularly associated with the Jazz Age of the 1920s. 

prong

noun
  • The penis. 

  • A thin, pointed, projecting part, as of an antler or a fork or similar tool. A tine. 

  • A branch; a fork. 

verb
  • To pierce or poke with, or as if with, a prong. 

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