먹을 거야

will eat

→ 먹다
phrase Uncommon #10,861
will eat An informal way to say someone plans or intends to eat. It can also be a question when said with rising intonation.
KO: 저녁에 김밥 먹을 거야.
EN: I’ll eat gimbap for dinner.

도시가 멀지 않으니까 거기 도착해서 먹을 거 야

Since the city isn't far, I'll eat when I get there.

— 리턴 (2003)

점심에도 죽 먹을 거 야

I'm going to have porridge for lunch too.

— 반딧불의 묘 (1988)

뭐 좀 먹을 거 야?

Are you going to eat something?

— 행복한 라짜로 (2018)

나가서 먹을 거 야

I'm going out to eat.

— 대부 (1972)

먹을 거 야?

Are you going to eat?

— 더 플랫폼 (2019)

우리 모두 이 마늘 한 쪽 씩 먹을 거 야.

We're all going to eat one clove of garlic each.

— 씨너스: 죄인들 (2025)

점심에는 국수 먹을 거 야

I’m going to have noodles for lunch.

— 음식남녀 (1994)

고기 먹을 거 야

I'm going to eat meat.

— 너자 (2019)