Big Ben vs tick-tock

Big Ben

name
  • The hour bell in the Elizabeth Tower (formerly known as the Clock Tower), adjacent to the Houses of Parliament in Westminster, London, United Kingdom. 

  • The clock tower itself. 

tick-tock

verb
  • To make continual clicking sounds like those of an analog clock; to tick. 

noun
  • The sound of a ticking clock. 

  • A step-by-step account of an event or timeline. 

intj
  • A warning of some fateful impending event. 

  • The sound of a ticking analog clock. 

How often have the words Big Ben and tick-tock occurred in a corpus of books? (source: Google Ngram Viewer )