crowbar vs nail puller

crowbar

noun
  • An iron or steel bar, often with a flattened end which may also be hook-shaped, to be used as a lever to manually force things apart. 

  • An electrical circuit that prevents an overvoltage from causing damage. 

  • A type of cocktail made with only Crown Royal whiskey and lemon lime soda. 

verb
  • To force to move, usually with a crowbar; to prise. 

nail puller

noun
  • A tool used for gripping and removing a nail that was stuck beneath a surface. 

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