doolally tap vs three stops short of Dagenham

doolally tap

adj

  • Mad, insane, eccentric. 

noun

  • Camp fever; by extension, madness, eccentricity. 

three stops short of Dagenham

adj

  • Crazy; mad. 

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