destitute vs poor as a rat

destitute

adj
  • lacking money; poor, impoverished 

  • Lacking something; devoid 

verb
  • To impoverish; to strip of wealth, resources, etc. 

poor as a rat

adj
  • Synonym of poor as a church mouse 

How often have the words destitute and poor as a rat occurred in a corpus of books? (source: Google Ngram Viewer )