dartle vs jackhammer

dartle

verb
  • To pierce or shoot through; to dart repeatedly. 

jackhammer

verb
  • To strike (something) repeatedly with force, to pound. 

  • To use a jackhammer. 

  • To break (something) using a jackhammer. 

  • To move like a jackhammer. 

  • To beat hard, to pound. 

  • To form (something) using a jackhammer. 

  • To move (something) like a jackhammer. 

noun
  • A portable percussive power tool that combines a hammer and chisel used to drill or break hard matter, for instance rock or concrete. 

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