Lindsay Lohan has been very supportive of the new "Mean Girls" movie, after all, she was the original Cady Heron in the 2004 version, written by Tina Fey.

However, an offputting joke at her expense was the last thing she was expecting when she showed up at the premiere of the musical movie on Jan. 8.

"Lindsay was very hurt and disappointed by the reference in the film," said Lohan's rep, Leslie Sloan, noting that the actress was "surprised and taken aback" by the joke.

'Mean Girls' Joke About Lindsay Lohan

According to reports, the words "fire crotch" were thrown out by Megan Thee Stallion during the dialogue in the new "Mean Girls" movie, referencing a paparazzi video from 2006.

In the video, Brandon Davis referred to the "Parent Trap" star as a "fire crotch," resulting in the feud between Lohan and her friend Paris Hilton, who was seen laughing.

Even netizens felt weird towards the joke: "Using a sexist joke that it was first aimed at Lindsay by a weird man when she was still a minor is very weird."

"Very disrespectful to her. But I wonder if Megan even knew what this was referencing. She was 11/12 in 2006."

"That was disrespectful," another added.

Lohan made a small cameo in the new film, which was also written by Fey. The actress shows up as the moderator in the math competition scene towards the end of the movie.

READ MORE: Where Are The Plastics? Lindsay Lohan Returns Solo For 'Mean Girls: The Musical' Premiere

Lindsay Lohan, Original 'Mean Girls' Cast

While the original "Mean Girls" have all moved on with their lives and are pursuing different projects, it is clear that they still harbor love towards the 2004 film.

"The three of us are friends," Lohan said about her co-stars, Rachel McAdams, Amanda Seyfried, and Lacey Chabert.

​​"I love Amanda and she's done so well with her career," she added. "She's such a great actress and Lacey as well. We're good friends and that's what matters most."

According to reports, Lohan, Chabert, and Seyfried all starred in the Black Friday ad campaign for Walmart last year, and it only enforced their friendship.

"I'm part of the mom club now with them. It's great," Lohan continued, referring to her baby. "It's such an amazing feeling. I feel great. I feel wonderful. He's coming up on six months."

READ ALSO: Lindsay Lohan Encouraging Mom To Follow Into Candice Bushnell's Footsteps

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