United Kingdom, Feb. 28 -- Kathy Griffin has attacked Jack Black over his hygiene during their brief romance.

The comedian, 64, dated the actor, 55, in the 1990s, and she has now posted a TikTok video recalling his unconventional approach to bathroom etiquette after she once showered at his apartment in Vermont.

She said in her clip: "One night, I spent the night there, and the next day I'm in the shower. "I get off on the bathmat, and I said, 'I need a shower towel,' and he goes, 'You're standing on it.'"

Kathy also claimed Jack had just one bath mat that doubled as a towel, adding to her fans: "You guys, that's straight guys."

Despite the hygiene concerns, Kathy admitted she continued seeing the 'School of Rock' star, saying: "So na...