뭐 하는 새끼야

what the hell are you?

→ 뭐
phrase Rare #27,065
what the hell are you? A highly vulgar, insulting way to confront someone. 새끼 is a derogatory term for a person, similar to “bastard” or “asshole.”
KO: 너 뭐 하는 새끼야?
EN: What the hell are you?

뭐 하는 새끼 야, 이거?

What the hell are you doing, you bastard?

— Officer Black Belt (2024)

뭐 하는 새끼 야, 저거?

What the hell is that asshole doing?

— Failan (2001)

너 뭐 하는 새끼 야?

What the hell are you doing?

— My Name Is Loh Kiwan (2024)

뭐 하는 새끼 야?

What are you doing, kid?

— Unlocked (2023)