nutballs vs one fry short of a Happy Meal

nutballs

adj

  • Crazy, insane, unhinged. 

one fry short of a Happy Meal

adj

  • mad, deranged, insane 

  • stupid, retarded, slow 

How often have the words nutballs and one fry short of a Happy Meal occurred in a corpus of books? (source: Google Ngram Viewer )