butter someone's biscuit vs fascinate

butter someone's biscuit

verb
  • To interest or appeal to someone; to make someone happy. 

fascinate

verb
  • To evoke an intense interest or attraction in someone. 

  • To be irresistibly charming or attractive to. 

  • To make someone hold motionless; to spellbind. 

How often have the words butter someone's biscuit and fascinate occurred in a corpus of books? (source: Google Ngram Viewer )