Where does the term tenth of never originate?

Answer 1

It is a band, and has become common slang but the term is similar to a well known song:

12TH OF NEVER

(Paul Francis Webster / Jerry Livingston - Based on the 16th Century

English folk song "The Riddle Song - I Gave My Love A Cherry")

Johnny Mathis - 1957

Nina Simone - 1959

Bill Henderson - 1960

Cliff Richard - 1964

Connie Smith - 1966

Sandy Posey - 1967

Glen Campbell - 1968

The Chi-Lites - 1969

Donny Osmond - 1973

Elvis Presley - 1974

The Carter Twins - 1997

Also recorded by: Petula Clark; Cher; Billy J. Kramer; Eddy Raven;

Dave Young; The Browns; The Ventures; Roger Whittaker; Jeri Brown;

Marieann Meringolo; Jim Nabors; Pat Kelly; Clint West; Tony Ennis;

Frank Patterson; Olivia Newton-John; Floyd Cramer; Bronn Journey;

Slim Whitman; Hank Marvin; Lou Rawls; The Fureys.

You ask how much I love you must I explain

I need you oh my darling like roses need rain

You ask how long I'll love you I'll tell you true

Until the 12th of never I'll still be loving you

Hold me close never let me go

Hold me close melt my heart like April snow

I'll love you till the bluebells forget to bloom

I'll love you till the clover has lost it's perfume

I'll love you till the poets run out of rhymes

Until the 12th of never and that's a long long time

Until the 12th of never and that's a long long time