carry a secret to (one's)/the grave(redirected from carry a secret to her grave)
carry a secret to (one's)/the grave
To keep (not reveal) a secret for the duration of one's life. I can't believe that Grandma carried such a huge family secret to her grave! If Uncle Joe hadn't blurted it out, we'd never have known about it! Oh, Emily is a loyal friend—she would definitely carry a secret to the grave.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
carry a secret to the graveand carry a secret to one's grave
Fig. to never reveal a secret, even to the day of one's death. John carried our secret to his grave. Trust me, I will carry your secret to the grave!
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.