crazy as a pet coon vs harebrained

crazy as a pet coon

adj

  • Demented or crazy. 

harebrained

adj

  • Absurd, foolish or stupid. 

  • Frivolous and silly; featherbrained or scatterbrained. 

How often have the words crazy as a pet coon and harebrained occurred in a corpus of books? (source: Google Ngram Viewer )