get at vs hold a grudge

get at

verb
  • To attack verbally or physically; to annoy, bother. 

  • To manage to gain access to. 

  • To understand or ascertain by investigation. 

  • To persuade by intimidation, to tamper with. 

  • To begin working on or dealing with. 

  • To contact someone. 

  • To mean, signify. 

hold a grudge

verb
  • To stay angry (at someone or something). 

How often have the words get at and hold a grudge occurred in a corpus of books? (source: Google Ngram Viewer )