[txhurl]

https://en.wiktionary.org/wiki/day_of_days English[edit]. Noun[edit]. day of days (plural days of days). (idiomatic) A particularly noteworthy day; the day on which a milestone or especially memorable event occurs. quotations ▽. 1850, Edgar Allan Poe, "Morella": "It is a day of days," she said, as I approached; "a day of all days either to live or die. . . . I am dying, yet ...

[tomkat]

Curiouser and curiouser . . .