sprigtail vs walloper

sprigtail

noun
  • The sharp-tailed grouse. 

  • The pintail duck. 

walloper

noun
  • One who wallops. 

  • penis; (by extension) an idiot, a stupid person. 

  • A policeman, a male police officer. 

  • Something big; a whopper. 

  • A cudgel, a shillelagh. 

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