Lindsay Lohan wasn't on board with a joke included in the new Mean Girls movie musical.The actress, who starred as Cady Heron in the original 2004 film, joined writer and former costar Tina Fey at the New York City red carpet premiere to support the new film last week, and (spoiler alert) she turns up in one scene for a surprise cameo.

However, a rep for the actress tells PEOPLE that Lohan, 37, was not a fan of the new Mean Girls movie having a line of dialogue mentioning "fire crotch.""Lindsay was very hurt and disappointed by the reference in the film," her rep says.

A spokesperson for Paramount did not immediately respond to PEOPLE's request for comment.In the movie, Megan Thee Stallion, who also contributed a song for the soundtrack, shows up in social media montages. At one point, the rapper says about Cady (played by Angourie Rice) and her Christmas-themed talent show outfit, "Y2K fire crotch is back."

The reference is an apparent nod to a 2006 paparazzi video in which Brandon Davis referred to Lohan as a "fire crotch."

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. 

Lorne Michaels, Tina Fey and Lindsay Lohan attend the "Mean Girls" premiere at AMC Lincoln Square Theater on January 08, 2024 in New York City.

Lorne Michaels, Tina Fey and Lindsay Lohan at the "Mean Girls" premiere on Jan. 8, 2024. ARTURO HOLMES/GETTY

 The 10 Biggest Differences Between the New Mean Girls Movie and the Original

Fey, 53, reprises her role as Ms. Norbury along with returning as screenwriter and producer of the new Mean Girls film. The Saturday Night Live alum told Entertainment Weekly about making Lohan's cameo happen.

"Paramount was like, 'Can you get any of the original ladies? And I was like, 'I can't fit five people in.' I felt like if I could only get one person as a surprise, the original movie is really Lindsay's movie," said Fey. "As great as they all are, she's the heart of that movie."

"And I thought, well, what could she do? I didn't think [she should] play a teacher. I was trying to think of something that you wouldn't expect," she continued. "And just to have her do that late in the movie, it also feels like it comes, I hope, at a time where fans weren't expecting one more little surprise. It also lets her be smart, which Cady is."

Megan Thee Stallion attends the "Mean Girls" premiere 

Megan Thee Stallion at "Mean Girls" premiere on Jan. 8, 2024. ARTURO HOLMES/GETTY IMAGES

Fey also told The New York Times about eliminating some jokes from the new Mean Girls after the dialogue proved problematic in the 20 years since the original hit theaters.

"I was writing in the early 2000s very much based on my experience as a teen in the late ’80s. It’s come to no one’s surprise that jokes have changed," she said. "You don’t poke in the way that you used to poke. Even if your intention was always the same, it’s just not how you do it anymore, which is fine."

Added Fey, "I very much believe that you can find new ways to do jokes with less accidental shrapnel sideways."