What is the author's style in A Confederacy of Dunces by John Kennedy Toole?

A Confederacy of Dunces is narrated in Standard American English, but it is largely moved forward through the 18th-century patois of the Gulf Coast, similar only, one character remarks, to the dialect of Hoboken, NJ. Black and white characters speak close variants of the dialect, with the blacks' somewhat more pronounced in the dropping of final G's, internal slurring of polysyllabic words, and the corrupting of numerous words and phrases.