flea bag vs pooch

flea bag

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

  • A poor and disreputable person. 

  • A sleeping bag. 

  • A disreputable place of accommodation. 

pooch

noun
  • A dog of mixed breed; a mongrel. 

  • A bulge, an enlarged part. 

  • A dog. 

  • A distended or swelled condition. 

verb
  • To distend, to swell or extend beyond normal limits; usually used with out. 

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