one brick short of a full load vs simpleminded

one brick short of a full load

adj

  • Stupid. 

  • Not mentally sound; insane. 

simpleminded

adj

  • stupid. 

  • unsophisticated; lacking subtlety. 

How often have the words one brick short of a full load and simpleminded occurred in a corpus of books? (source: Google Ngram Viewer )