The drama has been far too intense for the Party Down South gang during their vacation to Savannah, and with Lyle now in the hospital after their Nascar outing, Mattie will decide the time to be Mrs. Nice Guy has ended.

When Santana starts calling the house after Lyle's hospitalization, she will decide that she's had enough of his cheating fiancee, and she won't hesitate to make sure Santana knows that she's not only disliked but she'll also risk big trouble for herself if she does anything else to hurt Lyle.

"I am not playing with you little girl," Mattie threatens in a preview clip for the Thursday, March 17 episode. "I ain't gonna pull your hair. I will hurt you."

Despite having the feelings she has, until now, Mattie has tried her best to stay out of the drama because she has needed to stay in a calm place due to everything she's gone through at home. But she has officially reached her breaking point, and if Santana has pissed her off enough, she could be in really big trouble if she's ever around when Mattie lets Martha out.

However, since Martha has been suspiciously absent this whole vacation, someone will need to turn up the drunken rage factor, and after a night of heavy drinking at the house, that someone will be Lauren—and she will introduce the gang to the previously unmet alter ego they didn't know: Lartha.

After Walt seems to antagonize her with some kind of comment, a very drunk Lauren will lose it—screaming and stomping around the house, breaking almost everything she touches, and even causing Walt and Daddy to hold doors closed from the outside so she can't get back out on the porch to cause more trouble there.

"Lauren is the total definition right now of White Girl Wasted," Daddy says in the clip.

Party Down South airs Thursdays at 9 p.m. on CMT.