A calm night out with the Real Housewives of New Jersey? Fuhgedaboudit.

A source tells the new issue of Us Weekly (on stands now) that when the cast vacationed in the Dominican Republic last month, they "got into a fight with a whole bar!"

The squabble involved Teresa Giudice, her husband Joe and Caroline Manzo's sons, Albie and Christopher, at the Hard Rock's Moon Lounge on February 22.

The massive melee began when Teresa, 38, accidentally sprayed champagne on nearby patrons. "One guy started yelling at her," a witness tells Us. "Then Joe and the Manzo boys told him to back off. That's when they all started wailing on each other."

At one point, Teresa -- who flipped a table during the show's first season -- "went flying across the floor," the onlooker adds.

For more details on the aftermath -- including Bravo's decision to keep the violent incident off the air -- check out this week's Hot Stuff video, as explained by Senior Editor Ian Drew and Jersey Shore's Vinny Guadagnino.

Also in the roundup: American Idol contestant Stefano Langone dumps Haley Reinhart for Pia Toscano, Michael Douglas "will have intense makeout sessions" with Matt Damon in a new biopic, and much more!