insaniac vs three stops short of Dagenham

insaniac

adj
  • Insane and maniacal. 

noun
  • One who is insane and maniacal. 

three stops short of Dagenham

adj
  • Crazy; mad. 

How often have the words insaniac and three stops short of Dagenham occurred in a corpus of books? (source: Google Ngram Viewer )