flea bag vs scumbag

flea bag

noun
  • A poor and disreputable person. 

  • A sleeping bag. 

  • An unkempt mammal, especially a dog or cat. 

  • A disreputable place of accommodation. 

scumbag

noun
  • A sleazy, disreputable or despicable person; lowlife. 

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