bedwetter vs pullet

bedwetter

noun
  • A cowardly person. 

  • A person who (habitually) urinates in his or her bed (during sleep). 

pullet

noun
  • A spineless person; a coward. 

  • A young hen, especially one less than a year old. 

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