Vile reason Donald Trump fired Khloe Kardashian on Celebrity Apprentice has been leaked.

New allegations have emerged that Khloe Kardashian was trashed by US President hopeful Donald Trump during her time on Celebrity Apprentice.

Competing on the reality show under Trump’s watchful eye, the Huffington Post reports Kardashian was subjected to regular torment by him about her weight.

Staffers on the reality show have recalled how Trump, 70, desperately wanted to fire Kardashian from the beginning.

From the first episode, Trump wanted her gone. Image via Youtube.

"He called her a 'piglet'," the editor said. He also claiming Trump said, "What is this? We can't even get the hot one," over to not being able to secure Kim Kardashian as a contestant.

Several others who worked behind the scenes have backed the accusations.

“(Trump) said: ‘Why don’t we fire Khloe? She is a fat piglet. Why did we get the ugly Kardashian?," according to a second source.

Another editor claimed Trump had a vendetta against Kardashian and would find any way to get her off.

"Whey they fired [Kardashian], it wasn't on merit," they said. "It was on him not liking her."

The Huffington Post reports that on one occasion, Trump went to the entire staff to ask how he could get her off the show.

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This isn't the first time allegations of Trump's horrible attitude towards participants on the Apprentice have emerged.

One former contestant, Summer Zervos, has come out in a press conference alleging Trump tried to kiss her several times and tried to force himself on her in 2007.

The Huffington Post published a transcript of Trump telling a singer to get some "f*ckin' dermatology" for their skin. A deaf actress also was reported to have been called "retarded" by Trump during her time on the show.