Gibson uses racial slur in third alleged rant to ex

As if it could not get any uglier, a third alleged audio recording of Mel Gibson ranting over the phone with ex-girlfriend Oksana Grigorieva has surfaced.

Using a racial slur for Hispanics in reference to a household employee at the home of Grigorieva, 40, the mother of Gibson's 8-month-old daughter, a voice sounding like Gibson's screams a string of profanities, evidently unaware he is being recorded. Grigorieva, who ostensibly is aware, calmly but firmly responds to his tirade, using the same profane terms.

"I'm not a gold digger," she tells him on the roughly six-minute audio, posted at RadarOnline.com. "I don't have any money and no property assigned to me. That's a gold digger for you? Are you insane? Yes, you are, of course."

Gibson, 54, was dropped by the William Morris agency last week, shortly after his longtime agent, Ed Limato, died on July 3.