At this Sunday's Real Housewives of New Jersey reunion show, all eyes will be on Teresa Giudice -- and with good reason.

Offending cast member Jacqueline Laurita so much that she opted out of the reunion, Giudice quickly comes under fire for slamming her other costars, Caroline Manzo and Melissa Gorga. But in true Giudice fashion, the reality star holds her own.

"You're the devil!" Giudice fumes at Gorga, who sources tell Us Weekly was set up by her sister-in-law Giudice at a recent Housewives function, when Giudice spread rumors and implied Gorga was once a stripper. "I'm looking at the exorcist right now."

Though her reunion spat with Gorga is explosive, Giudice really lets Manzo have it. Cookbook author Giudice may have argued her comments that Manzo is "as Italian as the Olive Garden" were in jest, but her costar just isn't buying it.

"Nothing makes sense," says Manzo to Giudice. "As an intelligent person, [your behavior] doesn't add up."

Retorts Giudice in a preview clip: "You're full of s--t!"

Watch more of the fiery teaser above and tune in to the first part of the Real Housewives of New Jersey reunion show Sunday at 10 p.m. (EST) on Bravo.