also: じゃね · じゃねえ · じゃねぇ · ぢゃねー · ぢゃねぇ
Colloquial contraction of じゃない, used in casual speech to negate a statement. Often carries a rough or emphatic tone, common in masculine speech but used broadly in informal settings.
See also: じゃない
That ain't mine.
Colloquial tag-question use, equivalent to じゃない？. Seeks agreement or confirmation in a casual, often rough tone. The long vowel じゃねー？ is especially common.
See also: じゃない
That's not hard at all, is it?
He's late again, isn't he?
Isn't this a bit too expensive?