all Lombard Street to a China orange

all Lombard Street to a China orange

Very probable or likely. London's Lombard Street has long been associated with the banking industry, while a "China orange" is considered an ordinary, unimportant thing. We'll definitely be able to beat the worst team in the league—it's all Lombard Street to a China orange.
See also: all, china, orange, street
Farlex Dictionary of Idioms.

all Lombard Street to a China orange

great wealth against one ordinary object; virtual certainty. dated
Lombard Street in London was originally occupied by bankers from Lombardy, and it still contains a number of London's principal banks. This idiom dates from the early 19th century, but the use of a China orange to mean ‘a worthless thing’ is recorded earlier.
See also: all, china, orange, street
Farlex Partner Idioms Dictionary
See also:
  • orange
  • which way the wind lies
  • how the wind blows
  • the way the wind blows
  • the way the wind is blowing
  • way the wind blows, which
  • which way the wind blows
  • how the wind lies
  • the betting is (that)
  • street
References in classic literature
They may well be angry, for it is all Lombard Street to a china orange that the School-house kick a goal with the ball touched in such a good place.
Tom Browns Schooldays
Sporting's low round of the week is now almost almost unsellable at 63.4-63.7 as prospects of anything lower than 62 (ten under par) are small and you certainly would not want to buy in the prevailing conditions as it's all Lombard Street to a china orange that there will be a few 64s.
Golf: Par-threes offer strong ace chances; SPREADWISE: THE OPEN
It's all Lombard Street to a china orange that the individual winner will be one of the six golfers who contests the final on Sunday afternoon.
Golf: Why all roads lead to Garcia at 11-1; Dunhill Cup