뭐 하는 거냐

what are you doing?

→ 뭐
phrase Rare #24,864
what are you doing? A blunt, informal way to ask what someone is doing, often expressing annoyance, disbelief, or criticism. 도대체 adds emphasis, like “what on earth.”
KO: 지금 여기서 뭐 하는 거냐?
EN: What are you doing here right now?

도대체 뭐 하는 거 냐?

What on earth are you doing?

— 양철북 (1979)

뭐 하는 거 냐?

What are you doing?

— 레옹 (1994)

여기 앉아서 뭐 하는 거 냐?

What are you doing sitting here?

— 컴 앤 씨 (1985)

뭐 하는 거 냐

What the hell are you doing?

— 에브리씽 에브리웨어 올 앳 원스 (2022)