drinking straw vs keg

drinking straw

noun
  • A long tube (usually made out of plastic or paper) through which a beverage is drunk via suction. 

keg

noun
  • A round, traditionally wooden container of lesser capacity than a barrel, often used to store beer. 

verb
  • To store in a keg. 

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