The definition of a tell all book, movie or interview is when full and often interesting, details are revealed.
An example of a tell all book is a book written by the ex-wife of a movie star who spills all the dirty secrets about her marriage and what the movie star is really like.
designating or of a book, magazine article, interview, etc., esp. an autobiographical one, that reveals personal, often scandalous, information
Revealing intimate or scandalous details: a tell-all memoir.
A publication, such as a biography or memoir, that reveals intimate details or scandalous information.
- (idiomatic) To reveal everything, particularly information that is normally withheld.
- The suspect told all when he saw the surveillance tapes linking him to the crime scene.
- The actress's earthy new book tells all.
- Used other than as an idiom: see tell, all.
- She told all of her friends the big news.
- She told all of the news to her friends.