round the bend vs squirrelly

round the bend

prep
  • Crazy, mad or insane. 

  • Close to or in close proximity to another location. 

squirrelly

adj
  • resembling a squirrel 

  • unpredictable or jumpy 

  • eccentric 

How often have the words round the bend and squirrelly occurred in a corpus of books? (source: Google Ngram Viewer )