your luck is in

US /jʊər lʌk ɪz ɪn/
UK /jʊər lʌk ɪz ɪn/
"your luck is in" picture
1.

운이 좋다, 운이 따르다

used to say that someone is having good luck

:
You found a twenty-dollar bill on the street? Your luck is in!
길에서 20달러짜리 지폐를 찾았다고? 운이 좋네!
If you get the last piece of cake, then your luck is in.
마지막 케이크 조각을 얻으면, 운이 좋은 거야.