Doing more reading in mangas and found ～めぇし. Here is the sentence:
ここは地獄じゃあるめぇし! お前が死にそうな顔すんなよ！
I perceived this as "This isn't hell." Though, it confused me when saw めぇし. I always thought it was まい or meant to be ねぇし. Can someone clear this up?
No, this めぇ isn't a typo. It's a colloquial form of the negator まい, in which the vowel sequence /ai/ is replaced with the long vowel /eː/. You'll hear this sort of change in all sorts of words, not just in ない → ねぇ.
The sentence ここは地獄じゃあるまいし means "It's not like this is hell".
