bitching vs pester

bitching

noun

  • A spiteful criticism or complaint. 

adj

  • Excellent; outstanding. 

  • Awful, terrible. 

pester

noun

  • A bother or nuisance. 

verb

  • To bother, harass, or annoy persistently. 

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