뭐긴

what do you mean, what?; what else could it be?

→ 뭐+이+긴
pronoun · informal Rare #27,613
what do you mean, what?; what else could it be? Colloquial; often used as a rhetorical reply before giving an obvious answer.
KO: 뭐긴, 네가 찾던 열쇠지.
EN: What do you mean, what? It’s the key you were looking for.

뭐긴

What else would it be?

— 폭풍의 시간 (2018)

아, 뭐긴 뭐 예요?

Oh, what do you mean, what is it?

— The Chaser (2008)

뭐긴 뭐 예요,

What do you mean, what is it?

— Ballerina (2023)