tell-all adjective 1noun 1/ˌtɛl ˈɔːl/ verb 1forms 4 adjective1 •Telling all; revealing everything, particularly details or information that are normally withheld.The statesman's tell-all memoirs were not published until long after death.Open source is a tell-all software development strategy. noun1 •A publication, usually a book or magazine article, which tells all, revealing every detail, particularly information that is normally withheld.At this point, we could all write a tell-all about our tabloid childhoods and contrive an autobiographical performance about the pleasures of humiliation. — 1998 tell all /ˌtɛl ˈɔːl/ verb1 •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. formstold all · telling all · tells all · tell-alls
