pester vs puppy

pester

noun
  • A bother or nuisance. 

verb
  • To bother, harass, or annoy persistently. 

puppy

noun
  • A (generic) thing; particularly something that is a nuisance; a sucker. 

  • A young dog, especially before sexual maturity (12-18 months) 

  • A young rat. 

  • A young seal. 

  • A woman’s breast. 

verb
  • To bring forth whelps or give birth to pups. 

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