Tori Spelling
Tori Spelling and Jennie Garth just threw some major shade at Tiffani Thiessen. Pictured: Spelling posing at the premiere of Walt Disney Animation Studios’ “Moana” in Los Angeles on Nov. 14, 2016. Reuters/Danny Moloshok

Tori Spelling and Jennie Garth threw some shade at their former “90210” costar, Tiffani Thiessen, during their guest appearance on the latest “RuPaul’s Drag Race” episode.

During Friday’s show, Spelling, 43, and Garth, 45, did judge duties for VH1’s reality competition series. Their appearance was, of course, very timely and needed as the show did a parody of their hit ‘90s TV show. Surprisingly, when it was time for them to critique the drag queen who dressed up as Thiessen’s Valerie Malone, they didn’t have nice words to say about their former co-actor.

Garth was first to say something about the Valerie look of a contestant, but she appeared to have had a hard time saying Thiessen’s name. “As Ti—, how do you say it?” she said. Before she could finish what she was about to say, Spelling jumped in to say, “Just say, ‘That which we don’t speak of.’” This made the panel of judges laugh, right before Garth repeated Spelling’s words, saying, “Yes, we know her as ‘That which we don’t speak of,’” as quoted by People.

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The two did not add more to their shade, but it’s clear that they still have something against the “Saved By The Bell” alum. Back in 2012, Thiessen, now 43, first opened up about her bad blood with Garth during an interview with Howard Stern on the latter’s Sirius XM show. At the time, Thiessen exposed that when she was cast to join “90210” in 1994, “the girls were not very nice to [her].”

However, things took a 180-degree turn for Thiessen and Garth eventually. The two even became close enough friends that Thiessen was present when Garth and then-husband Peter Facinelli welcomed their first daughter, Luca Bella, who is already 19 at present.

Although their friendship was genuine, it was only good while it lasted. Thiessen revealed that they had “a falling out” and things did not return to what they were as they grew apart. Without divulging more details, Thiessen just said that she was “the one who was hurt, let’s just say that.” She also noted that it’s a bit funny to think that their “relationship started really rough and ended the way it started,” as per Us Weekly.

As for why she’s no longer friends with Spelling, Thiessen disclosed that their relationship was affected by Spelling’s split from Charlie Shanian in 2006. Apparently, Thiessen was a close friend of Shanian’s, so she felt bad after knowing that Spelling had fallen for actor Dean McDermott while the two were filming their made-for-TV Lifetime movie, “Mind Over Murder.”

“It was a hard situation for everybody. We were close with Charlie … my best friend was Charlie’s roommate. It was hard,” Thiessen said, before claiming that she has nothing against Spelling anymore. “Our kids go to the same school, and she’s moved on. I’m glad she’s happy, and she’s having tons of kids and she’s great. I’m happy for her.”