Frankfurter vs langer

Frankfurter

noun
  • A native or inhabitant of Frankfurt, Germany. 

langer

noun
  • A person from south county Dublin. 

  • Fool; idiot; annoying or contemptible person (usually male). 

  • Penis. 

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