그게 뭐가

what's … about that?

→ 그것+이
phrase Rare #28,421
what's … about that? Often used in rhetorical questions to challenge the idea that something is bad, strange, or important.
KO: 그게 뭐가 문제야?
EN: What's the problem with that?

그게 뭐가 대수 라고요

What's the big deal about that?

— 당갈 (2016)

그게 뭐가 이상해

What's so weird about that?

— 에브리씽 에브리웨어 올 앳 원스 (2022)

그게 뭐가 중요해?

Why does that matter?

— 박쥐 (2009)

그게 뭐가 나빠?

What's wrong with that?

— 사랑해 줘 사랑해 줘 (2026)