plop vs waterspout

plop

noun
  • A sound or action like liquid hitting a hard surface, or an object falling into a body of water. 

  • Excrement. 

verb
  • To make the sound of an object dropping into a body of liquid. 

  • To defecate. 

  • To land heavily or loosely. 

intj
  • Indicating the sound of something plopping. 

waterspout

noun
  • A plume of water rising from the surface of a body of water as the result of an impact or explosion. 

  • A whirlwind that forms over water, not associated with a mesocyclone of a thunderstorm (contrary to a true tornado). 

  • A true tornado that passes over a body of water. 

  • A channel through which water is discharged, especially from the gutters of a roof. 

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