bell button vs ding-dong

bell button

noun
  • A button in the form of a jingle bell, used as a fastener or decoration on a piece of clothing. 

  • A small, round mechanical device which, when pressed, rings a bell to announce one's presence or call a servant, assistant, etc. 

ding-dong

noun
  • A sound made by a bell. 

  • A penis. 

  • An idiot. 

  • A woman's breast. 

  • An attachment to a clock by which the quarter hours are struck upon bells of different tones. 

  • A fight, an argument; a set-to. 

verb
  • To ring with two tones, like a bell swinging back and forth. 

adj
  • Closely fought. 

How often have the words bell button and ding-dong occurred in a corpus of books? (source: Google Ngram Viewer )