daft as a brush vs nutty as a fruitcake

daft as a brush

adj

  • Tending to do or say silly things. 

nutty as a fruitcake

adj

  • Behaving in an eccentric, foolish, or kooky manner; very nutty. 

How often have the words daft as a brush and nutty as a fruitcake occurred in a corpus of books? (source: Google Ngram Viewer )