Amy Schumer has been accused of stealing jokes from three female comedians.

Comedians Wendy Liebman, Kathleen Madigan and Tammy Pescatelli complained the star had lifted jokes from their acts, in a now-deleted Twitter conversation this weekend that was captured by Refinery 29.

While they appeared to backtrack this week, the comedians posted a number of jokes they claimed were similar to those done by the star in her HBO Special, hit movie Trainwreck and Comedy Central show.

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Comedy star: Amy Schumer, seen at the Critics Choice Awards in Los Angeles on Sunday, was accused of lifting jokes from other comedians in since-deleted Twitter chatter over the weekend

Amy, 34, has become a star with her unique brand of candid humor, which often addresses female sexuality and pokes fun at sexist double-standards.

But not everyone is a fan, with other comedians alleging the movie star's jokes were lifted.

'Between Amy Schumer doing 1 of my best jokes on her HBO special and this meme of my joke, I’m done with social media,' comedian Wendy tweeted on the weekend.

The comment appears to be a reference to Wendy's joke: 'Maybe I'm old-fashioned, but I like it when the guy pays for sex,' and a line from Amy's HBO special where she says 'I'm very old school, I think the guy should always pay on the first date for sex.'

That prompted a reply from stand-up and Arrested Development writer Chuck Martin, who wrote 'So maddening. You and @kathleenmadigan should talk.'

Comedian Tammy Pescatelli then jumped in, adding in now-deleted tweets: 'What has always been amazing to me is that she purports to be a feminist and yet only steals from other female comedians.

See more of the latest news on Amy Schumer as she is accused of 'stealing jokes'

Stealing claims: Comedians, from left, Kathleen Madigan, Tammy Pescatelli and Wendy Liebman

Over it: Comedian Wendy Liebman tweeted that she had spotted one of her 'best jokes' in Amy's HBO Special Live At The Apollo

Not a fan: Arrested Development writer Chuck Martin replied to Wendy Liebman after the comedian said she saw Amy Schumer do her joke during her HBO special

Upset: Comedian Tammy Pescatelli claimed the Trainwreck star stole a joke from her routine which was used in hit movie Trainwreck

'If we call her on it we are 'jealous' or career shamed. Be successful. WE want you to do well, just do it will (sic) your own material. BTW she blocked me.'

Tammy also stated that Amy had opened for the women previously, suggesting she had heard the jokes before.

And she tweeted links comparing Kathleen Madigan's comedy routine about Oprah Winfrey, which includes a joke about the billionaire being so rich she can pay people to just slap food out of her hands, to Inside Amy Schumer clips 'Slap Chef' and 'Sleep Gym.'

'So many more but nobody listens...at least Cosby knocked his victims out b4 he raped them,' Tammy wrote in a now-deleted tweet, according to Refinery 29.

'I get why poor people are fat, but Oprah, you're a billionaire,' goes Kathleen's gag.

'You have enough money to pay a man to stand there and literally slap s*** out of your hand before you put it in your mouth. You could hire a full time food slapper. You’re so rich you could pay someone to exercise you. You could just lay there like a baby with cerebral palsy and have people move your legs.'

Comedy star: Amy wore a white Calvin Klein gown as she picked up Critics' Choice Awards for MVP and Best Actress on January 17

The Inside Amy Schumer sketch 'Slap Chef', is a spoof commercial for a weight loss program where women hire fancy chefs to make delicious meals and then slaps it out of their hand before they can eat it.

'Sleep Gym', is another ad spoof, where lazy clients are put in a coma and then personal trainers put their body through the paces hiking, kickboxing and doing boot camp to drop pounds without the boredom of the gym.

Tammy also compared a joke from her 2006 Comedy Central special to a line in Amy's hit rom com Trainwreck.

'As a woman, I will admit, women dress for other women,' Tammy's joke begins.

'That's why men, if we love you, we dress you for other women too. That's why we dress you stupid. Because we want another woman to look at you and go 'he's cute but I can't fix all of this.' Who do you think invented the Hawaiian shirt?'

Comedy darling: Amy in her hit rom com Trainwreck, which she also wrote

In Trainwreck, Amy's character makes fun of her sister's husband's ugly sweater, joking: 'You dress him like that so nobody else wants to have sex with him? That's cool.'

However, Tammy later tweeted that she wasn't trying to start a 'beef' or fight with the star.

'No beef. Just presenting facts of oppression and degradation,' she wrote.

And comedian Wendy Liebman, who had originally called out Amy's HBO Special joke, on Tuesday said she hadn't accused the comedian of stealing, just pointing out that they told the same gag - and that she wrote it first.

Coincidence? Comedian Wendy Liebman, who initially claimed Amy used her joke in an HBO special, later backtracked on social media on Tuesday

No beef: Wendy said 'it''s all good' on Monday in what appeared to be a reference to the allegations

'I never said Amy Schumer stole my joke,' wrote Wendy. 'I just said it was the same.

'It's possible we both wrote it. I just wanted you to know I wrote it 1st,' she said.

Earlier, she tweeted 'It's all good.'

In October, Amy denied allegations that she lifted a joke from comedian Patrice O'Neal during her HBO Special, Live At The Apollo. That gag was about ridiculous dirty names for sexual positions.

'I would never take someone's joke,' Amy told TMZ at the time. 'I would never do that.'

New guy: The Inside Amy Schumer star recently went public with her new boyfriend, furniture designer Ben Hanisch. Above, the couple at the Critics' Choice Awards on Sunday

Back to work: Amy shared a photo of herself with sister and co-writer Kim Caramele as they started filming season four of Inside Amy Schumer on Tuesday

'Patrice is my really good friend, I never saw him do that... I never saw him do those jokes. The thought that I would maybe see those jokes and then go 'Oh, I like those! I'm going to close my HBO special with them' is crazy.'

DailyMail.com has reached out to Amy's reps for comment.

Meanwhile, the Comedy Central star shared some Instagram photos as she got back to work filming her TV show's fourth season on Tuesday.

'Day 1 season 4,' she captioned a selfie with sister and cowriter Kim Caramele.

Amy also recently won MVP and Best Actress in a Comedy at the Critics' Choice Awards on Sunday, where she was accompanied by her new boyfriend, furniture designer Ben Hanisch.