すか

is it?, are you?, do you?

s ɨ̥ k a̠
particle Rare #35,257
is it?, are you?, do you? An informal, rough contraction of ですか, often used in casual speech, especially by men.
JA: 大丈夫すか?
EN: Are you okay?

帆高マジすか

Seriously?

— 天気の子 (2019)

いいすか

Is it okay?

— GHOST IN THE SHELL (1995)

あーそのって鈴芽ちゃんのすか

Ah... Is that cat Suzume-chan's?

— すずめの戸締まり (2022)

マジすか

Seriously?

— すずめの戸締まり (2022)

Sounds similar to