butter someone's biscuit vs entertain

butter someone's biscuit

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

entertain

verb
  • To amuse (someone); to engage the attention of agreeably. 

  • To have someone over at one's home for a party or visit. 

  • To receive and take into consideration; to have a thought in mind. 

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