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Kathy Griffin is going after Andy Cohen on social media once again, this time with a story from a man who claims he had a one-night stand with the “Watch What Happens Live” host.

“I find it hilarious that Andy Cohen’s current ad campaign for ‘WWHL’ has a premise that implies that no matter where he goes people just want to spill their guts to him,” Griffin, 57, tweeted Friday morning.

She followed with an account allegedly sent to her from a man named Forrest who claims he slept with Cohen, 49, in college.

Forrest, whose last name was redacted from Griffin’s posting, alleges he met Cohen through their mutual friend Amanda in 1989 at the University of Wisconsin, and that Cohen came to his apartment the same night.

Forrest mocked Cohen’s lazy eye and claimed that the TV personality was an aggressive and selfish lover, noting, “By the way, Andy is a small guy, not just in height.” By Forrest’s own account, Cohen declined to see him again after their first and only encounter.

Griffin has been feuding with Cohen publicly ever since he was named as her replacement on CNN’s New Year’s Eve special with her former friend Anderson Cooper.

Griffin was fired from the annual broadcast following a photoshoot where the comedian held what appeared to be Donald Trump’s severed, blood-soaked head.

In October, the onetime star of “My Life on the D-List” released a video slamming Cohen and TMZ founder Harvey Levin, alleging that Cohen was a “miserable boss” and accusing him of offering her cocaine and treating her “like a dog” during their tenure together on Bravo.

After Griffin’s video went viral, Cohen joked to TMZ cameras that he “doesn’t know” Griffin, referencing the time Mariah Carey infamously claimed not to know Jennifer Lopez. He later called her entire tirade a “bag of bulls—t.”

“Enjoy your morning tea,” Griffin concluded her post. “Prepare yourself for his transparent retaliation. Do you know me now, b*tch?”

A rep for Cohen did not immediately return a request for comment.