이게 뭐냐

what is this?

→ 이것+이
phrase Rare #28,666
what is this? Often used rhetorically to express annoyance or disapproval, similar to “What is this supposed to be?”
KO: 방이 왜 이렇게 더러워? 이게 뭐냐?
EN: Why is the room so dirty? What is this?

근데 옷이 이게 뭐 냐?

But what are you wearing?

— Oasis (2002)

이게 뭐 냐?

What is this?

— 학이 난다 (1957)

게다가 돼지우리처럼 이게 뭐 냐!

And what the hell is this, like a pigsty!

— 마농의 샘 1부 (1986)