memory-hole vs tread on someone's toes

memory-hole

verb
  • To cause something or someone to be forgotten. 

tread on someone's toes

verb
  • To offend someone. 

  • Used other than figuratively or idiomatically: see tread, toes. 

How often have the words memory-hole and tread on someone's toes occurred in a corpus of books? (source: Google Ngram Viewer )