forever and a day

forever and a day

1. Eternally; always; ceaselessly. Honey, I'll love you forever and a day!
2. An exceptionally long period of time. Jim, how you been? It's been forever and a day since I last saw you!
See also: and, forever
Farlex Dictionary of Idioms.

forever and a day

1. For a very long time, as in He's been working on that book forever and a day. This hyperbolic expression probably originated as a corruption of the now obsolete for ever and ay. Shakespeare used it in The Taming of the Shrew (4:4): "Farewell for ever and a day." Today it is mainly a substitute for "very long time." [c. 1600]
2. Incessantly, ceaselessly, as in Will this racket never end? It's been going on forever and a day. [Colloquial; first half of 1900s]
See also: and, forever
The American Heritage® Dictionary of Idioms by Christine Ammer.

for ever and a day

Always; forever.
See also: and, ever
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • for ever and a day
  • forever and ever
  • take forever
  • forever after
  • lost and gone forever
  • for keeps
  • doomsday
  • till doomsday
  • till kingdom come
  • till/until kingdom come