more sacks to the mill vs stack-upon-the-kill

more sacks to the mill

noun

  • A children's dogpile game played in Oxfordshire and other areas of Britain. 

stack-upon-the-kill

noun

  • A dogpile game played in Cheshire and other areas of Britain. 

How often have the words more sacks to the mill and stack-upon-the-kill occurred in a corpus of books? (source: Google Ngram Viewer )