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Social media is not feeling Wendy Williams’ latest gaffe.

The talk show host mocked 2020 Oscar nominee Joaquin Phoenix’s apparent cleft palate on her Jan. 7 show — and fans and activists are getting upset about it a week later.

During the “Hot Topics” segment of the episode, Williams, 55, started lusting after the “Joker” star’s “piercing eyes,” after his win at the Golden Globes the previous weekend.

“When he shaves off his mustache he’s got a hairline fracture,” she said. “He’s got one of those — what do you call it? Cleft lip, cleft palate.”

Williams then proceeded to hook her finger in her lip and imitate the common birth defect, which occurs when a baby’s lips or mouth do not form properly.

Phoenix, 45, has never formally spoken about the cause of the scar on his lip — and viewers are not taking Williams’ actions lightly.

Adam Bighill, a Canadian professional football player who was born with a cleft lip and palate and whose infant son Beau was also born with the condition, has demanded an apology from Williams for the past five days. He says he will continue to tweet until he gets a response.

“Waiting for @FOXTV and @BET to let @WendyWilliams [know] that her actions/comments towards the cleft community are not okay,” Bighill, 31, wrote on Twitter, as a part of his campaign.

British TV personality Carol Vorderman, 59, who says she is an “ambassador for the Cleft Lip and Palate Association,” also tweeted her disgust at Williams’ remarks.

“Mimicing [sic] a cleft lip, and making a joke about it, is disgraceful. Have you any idea the pain and operations a child with cleft must go through as they grow?” she wrote.

Williams issued an apology via Twitter on Wednesday evening, addressing Bighill and promising to donate to Operation Smile and the American Cleft Palate-Craniofacial Association.