An open secret is a concept or idea that is "officially" secret or restricted in knowledge, but is actually widely known; or refers to something which is widely known to be true, but which none of the people most intimately concerned are willing to categorically acknowledge in public.
Famous quotes containing the words open and/or secret:
“Where is the Mississippi panorama
And the girl who played the piano?
Where are you, Walt?
The Open Road goes to the used-car lot.”
—Louis Simpson (b. 1923)
“Methinks a Man cannot, without a secret Satisfaction, consider the Glory of the present Age, which will shine as bright as any other in the History of Mankind. It is still big with great Events, and has already produced Changes and Revolutions which will be as much admired by Posterity, as any that have happened in the Days of our Fathers, or in the old Times before them.”
—Richard Steele (16721729)