keep it/something dark

keep something dark

If you keep something dark, you keep it a secret. She took pleasure in keeping dark the identity of the man who was coming.
See also: dark, keep, something

keep something dark

keep something secret from other people.
1993 New York Review of Books Ottoline was determined to keep her affair with Russell safe from Bloomsbury's prying eyes and she and Russell went to Feydeauesque lengths to keep their secret dark.
See also: dark, keep, something

keep it/something ˈdark (from somebody)

(British English, informal) keep something secret: I’ve got a new job, but keep it dark, won’t you?
See also: dark, keep, something