じゃねぇか

isn't it?

→ だ
phrase Rare #23,448
isn't it? A very informal, rough form of じゃないか. Often used to point something out or express surprise, not just to ask a question.
JA: もう終わったじゃねぇか。
EN: You already finished, didn't you?

ではよろしくあのお名前だけでもいい男じゃねぇか

Well then, nice to meet you. Hey, at least tell me your name. Not a bad-looking guy, huh?

— The Wind Rises (2013)

俺は自分が冷たい人間なんじゃねぇかと思うよ

I think I might be a cold person.

— Tampopo (1985)

楽しそうじゃねぇか

Looks like you're having fun.

— イノセンス (2004)

いいじゃねぇかそんな事

There's nothing wrong with that.

— イノセンス (2004)

この襲撃事件について…やるじゃねぇか

About this attack… not bad.

— 紅の豚 (1992)

遅かったじゃねぇか

You're late.

— The Garden of Sinners: Paradox Spiral (2008)

お前にだって娘がいるじゃねぇか

You have a daughter too, don’t you?

— イノセンス (2004)

できるじゃねぇか!

Well, look at you—you can do it after all!

— One Cut of the Dead (2017)

本当のこと言っただけじゃねぇか

I was just telling the truth, wasn't I?

— 七人の侍 (1954)