not right in the head vs nut-bar

not right in the head

adj

  • crazy, insane 

nut-bar

adj

  • Crazy, mad. 

noun

  • A bar or shaft with an aperture for a bolt or threaded rod to attach to or pass through. 

  • An insane person, a crazy person, a madwoman or madman. 

How often have the words not right in the head and nut-bar occurred in a corpus of books? (source: Google Ngram Viewer )