one fry short of a Happy Meal vs yampy

one fry short of a Happy Meal

adj

  • mad, deranged, insane 

  • stupid, retarded, slow 

yampy

adj

  • Barmy; mad; daft. 

noun

  • A foolish person. 

  • A vegetable, the Indian white yam. 

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