Meaning of Jane?

I heard a person use "じゃねえ" but twice in a round in question form like "じゃねえじゃねえか" what does this mean.

"janee" (when used as part of a sentence) is a colloquial form of "janai," "...(is) not," negative.

But when two of them come one after another, the second one is like a tag question, "...is it?" or "is it, right!?" with a bit of emphasis. (By the way, it is a casual male speech, a bit on the rough-sounding side.)

For example, you had heard from someone that a sports game ("shiai") you have been looking forward to would be tomorrow, and then you hear later from someone else that it was today! You might say:
- Shiai wa ashita janai janai ka! (The game isn't tomorrow, is it!? The game isn't tomorrow, right!?)

Someone promised to lend you a book you wanted to read ("yomitakatta hon"), but when that person gives you the book, it's a different one, then you might say:
- Ano hon janai janai ka! (It's not THAT book, is it!)

...with a bit of a blaming tone to it :)

Does this suit the context you heard it in?

Yes, thank you so much.

Note that when the question is negative you must think of "はい" and "いいえ" as correct and incorrect so there is no misunderstandings.