Disgraced Mel Gibson has been caught using yet another vile ethnic slur while going on a crazed rampage in a new audio tape exclusively obtained and about-to-be released by Breaking Celebrity News.

During a bitter argument with Oksana Grigorieva, the mother of his eight-month-old daughter Lucia, the troubled actor refers to a Latino worker as a “wetback.”

It’s yet another hateful outburst from the Oscar winning Braveheart star, who is being investigated by the L.A. County Sherriff’s Department on domestic violence charges.

"You’re a f*cking mentally deprived idiot," Mel screams at one point. “You’re a f*cking using [expletive]... I own you,” he rages. ”You don’t count.”

In this shocking new profanity-laden tape, Mel also gives a hint that he’s experiencing overall money problems.

Breaking Celebrity News will release the new audio tape shortly...

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