It’s an older southern variation on “cigarette,” and, like all regional variations, is correct if not preferred English. And, as a college writing teacher, I would also remind readers that correct English is determined by how it is used, which is why acceptable uses change from year-to-year, new words enter the vocabulary and out-of-use words are removed from the dictionary yearly. (Nor do I think it is hard to decipher, from the context “cigerets, guns & beer” what the variant spelling “cigeret” referred to (or, to follow the grammar rules I was taught and which have fallen by the wayside, “to what the variant spelling ‘cigeret’ refers.”)