douche boat vs royal pain

douche boat

noun
  • A rude, obnoxious, or contemptible person. 

  • A river craft outfitted with a high-pressure water cannon capable of destroying enemy encampments. 

royal pain

noun
  • Someone or something which is very angering, annoying or disgusting. 

How often have the words douche boat and royal pain occurred in a corpus of books? (source: Google Ngram Viewer )