After taking a call on his Sirius satellite radio show The Foxxhole Sunday, the Oscar winner and his zoo crew lashed out at tween dream and reigning box-office champ Miley Cyrus, referring to the 16-year-old as a "little white bitch" and advising her to alternately "do some heroin" and "make a sex tape and grow up."
The 41-year-old's foul outburst was prompted by a caller to the show who brought up a month-old story in which Cyrus pledged to "ruin" Radiohead after the rockers rejected a request to meet with the Disney star backstage at the Grammys.
"Who is Miley Cyrus?" an incredulous Foxx, who has a teenage daughter of his own, said. "The one with all the gums? She gotta get a gum transplant...S--t."
The insults didn't stop there. Or get less personal.
"She's gonna ruin Radiohead's career? The same Radiohead that gets paid a million dollars just to sample their songs?
"Make a sex tape and grow up," he continued. "Get like Britney Spears and do some heroin. Do like Lindsay Lohan and start seeing a lesbian and get some crack in your pipe. Catch chlamydia on a bicycle seat.
"That's what I want."
Just as long as he doesn't also want a young female audience to turn up for his next film.
Neither Cyrus nor Foxx has yet to directly address the rant, though the Hannah Montana star posted a suddenly relevant message to her Twitter page last night.
"If you cant say something nice dont say anything at all," she wrote.
A rep for Foxx, meanwhile, said a statement would be forthcoming, but cautioned fans from taking the actor's words too seriously.
"I'm sure you're aware," the publicist tells E! News, "that Jamie's show is a comedy."