Drunk. Adjective. Being in a temporary state in which one's physical and mental faculties are impaired by an excess of alcoholic drink; intoxicated.

Elle Fanning has checked herself into Cirque Lodge in Utah.

Dakota's little sis made the decision to follow in the footsteps of Cirque patients such as Lindsay Lohan and Richie Sambora — after a week of wild parties at last month's Sundance Film Festival (in which she attempted to break up the marriage of Peter Sarsgaard and Maggie Gylenhaal). Fellow actress Eva Mendes is also in the mountaintop facility right now.Mary Kate Olson was treated at Cirque for food issues.

"She desperately needed help," a source in Utah tells Star. "She seemed to be intoxicated when she checked in because she was acting really erratic. She was extremely emotional, constantly breaking down in tears.

"She not in a good place right now, but thankfully, she's getting the help she needs."

Fanning, 10, (who had a pregnancy scare last month) has long had a reputation for partying; bloggers have given her the unfortunate nickname, El Drunko.