plop vs warning

plop

noun
  • Excrement. 

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

intj
  • Indicating the sound of something plopping. 

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

  • To defecate. 

  • To land heavily or loosely. 

warning

noun
  • The action of the verb warn; an instance of warning someone. 

  • Something spoken or written that is intended to warn. 

intj
  • Used to warn of danger in signs and notices. 

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