As a much in-demand celebrity stylist, Rebecca Corbin-Murray is familiar with the all of the red carpet faux pas her A-list clients are anxious to avoid.

And London-based Corbin-Murray, 35, says there's one thing high-profile women fear more than even exposed 'side boob' or a visible foundation line.

She says her clients are most worried about being snapped with an 'armpit vagina'.

The bizarre effect occurs when a star wears a tight dress that pushes their armpits up, creating a crease that resembles an entirely different area of a woman's body.

Red carpet fail: Jennifer Lawrence, seen here displaying the crease between the armpit and torso dubbed the 'armpit vagina', is believed to have coined the phrase at the 2014 SAG awards

Confession: 'I know I have armpit fat, it's OK... it's armpit vaginas,' she said at the time

The phrase is said to have been coined by Oscar winner Jennifer Lawrence, who complained about it at the 2014 SAG awards.

Famous and afraid: London-based celebrity stylist Rebecca Corbin-Murray, 35, said its one of celebrities' biggest worries

She told reporters at the time: 'I know I have armpit fat, it's OK... it's armpit vaginas.'

When she apparently coined the phrase, Lawrence had appeared on the red carpet in a tight sequin dress to a string of compliments from reporters.

But in her usual deadpan style, the actress said she wasn't feeling comfortable all dolled up.

She said that her dress was 'squeezing her breasts into her armpits.'

And Corbin-Murray, who works with stars like Emma Watson and Sophie Turner, has revealed that it's not just Lawrence who worries about the issue.

The fashionista claims the armpit vagina comes up 'all the time' among the women she works with.

She told The Times: ''Sometimes it's the weirdest part of their body [they worry about].

A-list clients: Corbin-Murray works with Harry Potter star Emma Watson, pictured at the Elle Style Awards in London in February with a so-called 'armpit vagina' in evidence

All smiles: Emma avoided the dreaded armpit vagina in a spaghetti strap dress at The Circle film premiere in Paris in June

The stylist has also worked with Game of Thrones actress Sophie Turner, who displayed a bit of armpit vagina at the SAG Awards in 2016

'They say: ''I've got this horrible blah-blah'', and you think ''What are they even talking about?''

'The one that comes up all the time is the arm vagina.'

In May, model Chrissy Teigen revealed that she had gotten liposuction on her armpits nearly a decade ago to avoid the dreaded armpit vagina.

'I had my armpit sucked out,' she said in reply to someone who asked what was the craziest treatment she had ever received during an interview with Byrdie.

The procedure, she said, added 'two inches of length' to her arms and made her feel more confident while wearing sleeveless shirts.

Detailing the liposuction to Refinery29, she said: 'I had an armpit sucked out, which was one of the best things. It's a big secret, but I don't care. It was nine years ago or so.'

Coming clean: In May, Model Chrissy Teigen, pictured in February, revealed that she had gotten liposuction on her armpits nearly a decade ago to avoid the dreaded armpit vagina

Unintentional: The bizarre effect occurs when a star wears a tight dress that pushes their armpits up, like the form-fitting bustier dress worn by Beyonce in 2013

Whoops: Model Sara Sampaio's tight strapless created some unintended armpit bulge while she attended the Victoria's Secret Fashion Show viewing party in New York last month

The Sports Illustrated star further explained the effects of the procedure, calling it the 'dumbest' thing she has ever done. She said the effects turned out not to be permanent and noted she was thinking of getting it done one more time.

'And I had two inches to my armpit. Now it's back though, so now I've gotta pay for [liposuction] again. It was so easy,' she added.

'It made me feel better in dresses; I felt more confident. It was the dumbest, stupidest thing I've ever done. The dumbest, but I like it, whatever. I have no regrets, honestly.'

Beverly Hills-based plastic surgeon Sheila Nazarian told Allure that their has been a slow but steady rise in the number of requests for 'bra bulge' removal surgery over the past few years.

According to the doctor, it is 'young, active' women in their twenties, thirties, and sometimes forties requesting the fat-reduction surgery, which can be achieved through liposuction, CoolSculpting, or Kybella.

Nazarian noted that liposuction is the most common procedure for this type of fat removal, and it can be performed under local anesthetic in just a few hours.