crabbing vs grousing

crabbing

noun
  • The fighting of hawks with each other. 

  • A process of scouring cloth between rolls in a machine. 

  • The act or art of catching crabs. 

grousing

noun
  • The hunting of grouse 

  • Peevish complaining. 

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