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:
“Rats!
They fought the dogs and killed the cats,
And bit the babies in the cradles,
And ate the cheeses out of the vats,
And licked the soup from the cooks’ own ladles,
Split open the kegs of salted sprats,
Made nests inside men’s Sunday hats,
And even spoiled the women’s chats
By drowning their speaking
With shrieking and squeaking
In fifty different sharps and flats.”
—Robert Browning (1812–1889)
“That is the whole secret of successful fighting. Get your enemy at a disadvantage; and never, on any account, fight him on equal terms.”
—George Bernard Shaw (1856–1950)