There has been a buzz building for the last few weeks that our favorite rehab fixture, Lindsay Lohan, has fallen off the wagon in a big way. In January, the starlet was videotaped sneaking chugs of champagne straight from the bottle in a club in Italy, but her lawyer insisted she “called her sponsor and got back on track.” Now, sources close to Lohan say she’s up to her old tricks again.

Lindsay Lohan has fallen off the wagon so many times, she should be covered with bruises! And sources reveal she’s up to her old tricks of trying to hide her drinking.

The troubled 21-year-old actress–who did three stints in rehab last year– is filling water bottles with booze and asking friends to hide alcohol bottles for her at clubs, according to insiders.

“Lindsay thinks she’s pulling the wool over everyone’s eyes, but it’s obvious that she’s drinking again big time,” an insider told the Enquirer.

The “Mean Girls” star boozed it up at the trendy Los Angeles hotspot Avalon on February 8, according to the source…

…”She was sitting at a table topped with different kinds of juices, water and one of her favorite beverages- the energy drink Red Bull. But she had people stash bottles of Grey Goose vodka under the table.”

Lindsay’s party pals poured vodka into the Red Bull, then quickly slipped the Grey Goose back under the table, said the source.

“I saw Lindsay down close to 10 Red Bulls that night,” the insider revealed. “And a clubgoer told me that she’d been watching Lindsay all night- and she’d take a big slurp of Grey Goose when she thought no one was looking.”

Four nights later, Lindsay partied at the club Villa, where an eyewitness from the x17 photo agency says that Lindsay “was drinking vodka cocktails- several of them. She is not sober anymore. I know this for sure.”

[From The National Enquirer, print version, March 3, 2008]

Meanwhile, video footage of Lindsay falling down as she left the Villa nightclub that night is steadily making its way around the Internet. Many sobriety experts say vodka is the alcohol of choice for secret drinkers because they think it’s odorless, and can mix in with juices and water because it’s colorless.

Star says Lindsay can’t even help herself while dining with friends in a restaurant:

Lindsay Lohan ordered water and tried to act demure during dinner with friends at West Hollywood’s Madeo restaurant on Valentine’s Day. But it didn’t last long. “One of her pals was drinking wine, and she was sneaking sips of it under the table,” says a witness.

In public, Lindsay is keeping up a facade of sobriety, but her friends say she’s partying again. During the week of February 11, Lindsay holed up with pals at the Beverly Hills Hotel. “It was a wild party,” says an onlooker. “People were smoking pit and doing coke all night.”

“Lindsay is a really nice girl,” says a pal. “She’s also very lonely and insecure. She hates to be alone and she’s terrified of the dark. She’s like a little kid. And the worst thing is, no one helps her.”

[From Star Magazine, print edition, March 3, 2008]

Here’s some free advice for you, Linds: If you want to stay sober, STAY THE HELL OUT OF NIGHTCLUBS, YOU IDIOT!! But something tells me that not only does Blohan NOT want to stay sober– she never was.

Note by Celebitchy: Lindsay Lohan was photographed outside an AA meeting this week, and while part of me wants to give her credit the other part thinks it’s just damage control due to the tabloid reports which came out earlier in the week. She also talks at length in the March, 2008 issue of Paper about how she got sober. She also says that she was up for a role in a movie about silent screen star Clara Bow, but since she was in rehab and all it went to Sienna Miller. STFU Lindsay. I’m no fan of Miller but she’s a better actress than you are and she actually shows up to work.

Here are photos from Lohan’s Paper Magazine spread, thanks to Linds-Lo.com. Look – she’s wearing the same dress Kate Hudson did to the Fool’s Gold premiere. That’s what it needed – a belt.