sacking vs shopping bag

sacking

noun
  • Cheap rough cloth such as would be used to make bags (sacks). 

  • Firing or termination of an employee. 

shopping bag

noun
  • A strong bag with handles used to put purchases in; usually made of plastic, paper or fabric, sometimes given away with a purchase. 

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