buttlicker vs cajoler

buttlicker

noun
  • a contemptible person; an ass-kisser 

  • someone who performs rimming 

cajoler

noun
  • A person who cajoles; a flatterer. 

  • A speech act intended to persuade or convince, such as the utterance "you know". 

How often have the words buttlicker and cajoler occurred in a corpus of books? (source: Google Ngram Viewer )