bombshell vs smoke detector

bombshell

noun
  • A bomb or artillery shell designed to explode on impact. 

  • Something that is very surprising, shocking, amazing or sensational. 

  • Someone who is very attractive; a sex symbol. 

smoke detector

noun
  • A device that sounds an alarm when it detects smoke or other evidence of fire. 

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