Greek calends

or Greek kalends

plural noun

1. a point or time that does not or will not exist:

   She will do it on the Greek calends.

Example Sentences

The union was to last until British oppression ceased, and reparation was made to the Colonies for the injuries inflicted upon them; which, of course, under the circumstances, meant until the Greek Calends.

From Project Gutenberg

Mr. Gladstone is stated to have told Lord Palmerston that the Bill should not be carried till the Greek Calends, and in reply to the question put to him in the lobby by Sir Richard Bethell—‘Is it to be peace or war?’—fiercely replied, ‘War, Mr. Attorney—war even to the knife.’

From Project Gutenberg

And having stated that it was his firm intention to "dthraw next Sathurday, I give ye me secred word and honor next Sathurday, the fourteenth, when ye'll see the money will be handed over to me at Coutts's, the very instant I present the check," the captain would not unfrequently propose to borrow a half-crown of his friend until the arrival of that day of Greek Calends, when, on the honor of an officer and gentleman, he would repee the thrifling obligetion.

From Project Gutenberg

That unreachable date of classic folk-lore, the Greek Calends, has its quaint counterpart in the African saying, "I will pay thee when the fowls cut their teeth."

From Project Gutenberg

They unhesitatingly rejected the whole story of my wealth; and my future restoration to rank and riches used to be employed as a kind of synonym for the Greek calends.

From Project Gutenberg