exposé vs word on the street

exposé

noun
  • A publication of investigative journalism that reveals hidden and often scandalous truths. 

  • The act of exposing somebody or something; a shameful showing up. 

  • A formal recital or exposition. 

word on the street

noun
  • The rumour or news going around. 

How often have the words exposé and word on the street occurred in a corpus of books? (source: Google Ngram Viewer )