Drew (Darmirra Brunson) often wears tight clothes and short skirts on occasion, but nothing too revealing.
Hattie Mae is the dirtiest character on the show, often recalling past lovers and how she used to, quote, "drop the damn thing". Her tone and pronunciation can often mask some of the sexual innuendo, but it's usually clearly heard.
Uncle Floyd is also dirty, but to a lower degree. He mostly talks about his nephew possibly being gay because of his relationship with his roommate, and also sometimes about strippers and hookers.
Sam is the second dirtiest character in the show, often talking about his girls, or hoes, as he calls them. He also talks about other sexual innuendos, but nothing extremely perverted.