何様だ

who do you think you are?

→ 何様
phrase Rare #37,619
who do you think you are? A confrontational, often sarcastic way to challenge someone acting as if they are superior or entitled.
JA: 人にそんなことを言うなんて、何様だ?
EN: Who do you think you are, saying something like that to people?

何様だと思ってるんだ。

Who the hell do you think you are?

何様だ?

Who do you think you are?

— RRR (2022)

何度でも言う、何様だよ、偉そうに

I’ll say it as many times as it takes: who do you think you are, acting so high and mighty?

— ベイビー・ブローカー (2022)

おめえ何様だ!

Who the hell do you think you are?!

— Departures (2008)

何様だと聞いてる

I'm asking who the hell you think you are.

— 不思議惑星キン・ザ・ザ (1986)