Rebel Wilson Promises to Reveal Name of 'Massive Assh---' She Previously Worked with in New Book

"That guy was a massive assh---," the actress said

Rebel Wilson is teasing a bombshell reveal she makes in her upcoming memoir.

The actress's memoir Rebel Rising releases April 2. In a video shared on Instagram Friday, Wilson said there's a chapter in which she names a man she previously worked with who was a "massive assh---" to her.

"When I first came to Hollywood," the Australian comedian, 44, begins in the clip, "people were like, 'Yeah, I have a no-assh---s policy that means, like, I don't work with assh---s.' I was like, 'Yeah, I mean, that sounds sensible, logical.' "

"But then it really sunk in what they were meaning by that, older people in the industry. Because I worked with a massive assh---, and, yeah, now I definitely have a no-assh---s policy chapter on said assh---. It is chapter 23," adds Wilson. "That guy was a massive assh---."

Related: Rebel Wilson Wishes Herself a Happy 44th Birthday as She Celebrates Her 'Healthy' and 'Challenging' Life

In the caption, Wilson wrote, "Do you wanna know why I have a 'no assh---s' policy now with people I work with? … Well it’s all in the book: REBEL RISING available for pre-order now (drops April 2nd, link in bio) … oh and YES I name the assh---!"

Wilson, who shares daughter Royce with fiancée Ramona Agruma, previously said she opens up about fertility issues, weight gain and loss, sexuality, overcoming shyness, rejection and more in her book.

She told PEOPLE in October, “There's a lot of stories and personal stuff that I've never ever talked about. The book is this forum because it's me just sitting down telling my own story, and that was the right forum for some of these more emotional things."

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In 2022, Wilson told PEOPLE about a situation with an "awful" male costar she said "pulled down his pants" in front of her and his friends and asked her to perform a lewd act.

"I found out I was like the fourth person to complain about the guy," she said. "Such gross behavior, but a lot of women have had it way worse," she added.

She also referenced the alleged harassment in a series of tweets during the early days of Hollywood's #MeToo movement in 2017, as well as a separate incident with a “top director” who invited her to his hotel room.

“Earlier in my career, I also had a ‘hotel room’ encounter with a top director. I thought we were there to talk comedy. Nothing physical happened because the guy’s wife called and started abusing him over the phone for sleeping with actresses and luckily she was yelling so loud that I could hear her and I bolted out of there immediately,” she wrote at the time.

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