come up trumps

意味

to succeed or help when people did not expect it

予想に反して成功する、役に立つ.

例文

1. 1Our quiet neighbour came up trumps and fixed the boiler on Christmas Day.
2. 2I didn't expect much from the cheap hotel, but it came up trumps.
3. 3Everyone expected Leo to forget the cake, but he came up trumps with a perfect three-layer one.
4. 4If the bank comes up trumps with a loan, we can finally open the shop.
5. 5We needed one more volunteer for the fair, and Gran came up trumps by running the cake stall all day.

文法

come は不規則動詞：came、come。trumps は常に複数形。turn up trumps も同じ意味