flea bag vs greyhound

flea bag

noun
  • An unkempt mammal, especially a dog or cat. 

  • A poor and disreputable person. 

  • A sleeping bag. 

  • A disreputable place of accommodation. 

greyhound

noun
  • A lean breed of dog used in hunting and racing. 

  • A highball cocktail of vodka and grapefruit juice. 

verb
  • To leap rapidly across the surface of the water. 

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