Once a liar, always a liar. Dina Lohan, Lindsay’s stagecoach mom, said in an interview that she once told George Clooney she was Lindsay’s assistant instead of admitting that she’s her mom. It turns out Dina has lied about a whole lot more. She claims to be a former Rockette and to have acted on stage and in commercials, but extensive searches by The NY Post turned up a whole lot of nothing:

DINA Lohan, the leggy mother of Lindsay, is always described as a former Radio City Music Hall Rockette – but she’s not. After an inquiry from The Post, a spokeswoman for Radio City called back to say an exhaustive search found no record of Dina Lohan, or Donata Sullivan (her maiden name), ever being a Rockette. Execs at Cablevision, which owns Radio City, were said to be indignant anyone would claim to be a Rockette who wasn’t. “It’s like claiming to have a degree from Harvard when you don’t. It’s a big deal to be a Rockette,” said our source. A Google search of “Dina Lohan Rockette” yesterday turned up 884 links. Biographies of Dina, 44, also say the 5-foot-111/2 blonde acted on the Broadway stage and in commercials – also apparently not true. “Look in SAG [the Screen Actors Guild]. Look in AFTRA [American Federation of Televison & Radio Artists]. Dina isn’t a member,” said a family source. “She never did a Broadway show. She never did ads.”

We know of at least a few other lies Dina has told. She’s always saying Lindsay is fine when she seems to be more than out of control.

I can’t stand it when people lie, it’s a major character flaw and I’ve cut people out of my life for lying to me. Once you find out that someone lied to you, you end up scrutinizing everything they say because you can no longer trust them.

Since Dina is so free and loose with the fibbing, it must have been hard for Lindsay growing up. Some of that casual lying must have passed on to her, too. Lindsay told Vanity Fair last year that she battled drugs and was bulimic, but then denied ever saying she was bulimic and asked them to censor that and her drug admission from the interview. They stood by the interview and said they had all of Lindsay’s words on tape.

Dina Lohan is said to be planning a reality show with the E! Network, in which she manages the showbiz careers of her two younger kids. People are saying she’s a major famewhore to go ahead with those plans now that her oldest daughter got a DUI and is in rehab.

Header picture is of Dina with baby Lindsay and is from the NY Daily News.