knob-end vs winky

knob-end

noun
  • The glans penis 

  • Used other than figuratively or idiomatically: see knob, end. The end of something that is shaped into a knob. 

  • A stupid or contemptible person 

winky

noun
  • The penis. 

  • An emoticon or smiley that shows a winking face. 

adj
  • tending to wink; winking 

How often have the words knob-end and winky occurred in a corpus of books? (source: Google Ngram Viewer )