01/03/2012 11:59 EST | Updated 01/03/2012 12:29 EST

Kathy Griffin Tells Hollywood Women To Get Over It And Admit Their Ages

Why are some of the most successful and powerful business women and personalities in the world so afraid of a number?

In an industry where youth and beauty mean everything, it's not surprising that Hollywood women are sensitive about aging. But flat out refusing to reveal their age and fabricating birth dates even when being honoured for their careers?

"Cut that shit, guys!" says everyone's favourite foul-mouthed funny woman Kathy Griffin.

Griffin, 51 and proud, is calling out not only Hollywood women who refuse to reveal their true ages, but also the business that routinely passes over seasoned actresses for younger women.

"The ageism situation in Hollywood overall is only getting worse for everyone. At this rate, women are going to be considered over-the-hill if they're not a fetus," says Griffin.

Her advice to age-conscious women? "Own that shit!"

"Stand tall and proud and fight for what you deserve. Talent transcends age. And if you don't believe me, I have three words for you: Meryl. F--ing. Streep. She's as hot as ever!"

When The Hollywood Reporter was putting together their annual Women in Entertainment Power 100, which lists females who've made it big as CEOs, producers and entertainers, many of the honourees refused to reveal their ages, "some saying their careers would be irreversibly harmed if their ages were made public."

An anonymous actress is even trying to sue IMDB for showing her true age on her profile. The judge wants the woman to use her real name before the complaint can go forward, but of course that would mean revealing the dreaded truth.

"If one is perceived to be 'over-the-hill', i.e. approaching 40, it is nearly impossible for an up-and-coming actress, such as the plaintiff, to get work," says the complaint.

"I guess a lot of women just feel like if they reveal their age, they're going to be viewed as past their prime or unsexy or some bullshit like that," says Griffin.

Griffin certainly understands the pressure to stay forever young. She started her career in Hollywood at 30. As she describes it, "There was always someone younger, with perkier tits. Every f--ing time."

But wait, hasn't Griffin had "everything done except the tits?" Griffin's never kept her heaps of plastic surgery a secret, but for her, nipping and tucking for a youthful look and actual age are separate issues.

"Yes, you can go to a plastic surgeon and have your eyebrows pulled back to the top of your head, but that isn't necessarily youthful. I'd be lying if I said I've never stressed over how age impacts my appearance. I've been very open about having plastic surgery, or "dental work" as it's known in certain Beverly Hills circles," she says.

"As many of us know, plastic surgery doesn't change your age."

SEE: Celebrities who have lied about their ages:

Kathy Griffin Tells Hollywood Women To Get Over It And Admit Their Ages-from-mt-203143