I'll be dashed vs butter my butt and call me a biscuit

I'll be dashed

butter my butt and call me a biscuit

intj

  • An expression of astonishment upon learning something unbelievable (usually positive). 

How often have the words I'll be dashed and butter my butt and call me a biscuit occurred in a corpus of books? (source: Google Ngram Viewer )