biffer vs ugly duckling

biffer

noun
  • An unattractive woman. 

  • One who hits or punches; a fighter. 

  • An attacking batsman. 

ugly duckling

noun
  • A young person who is ugly, but who is expected to become beautiful as they mature. 

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