Credit: Chelsea Lauren/

Mel Gibson's shocking rage against estranged girlfriend Oskana Grigorieva escalates even further in a third audio snippet of their alleged phone conversation, released Tuesday at

As Gibson, 54, reportedly accuses Grigorieva, 40 (mother of his daughter Lucia, 8 months) of infidelity and being a gold-digger, he spews more racist and misogynistic remarks. (In a previously released excerpts, Gibson allegedly threatened to kill Grigorieva and dropped the N-word.)

"You're a f***ing mentally deprived idiot," Gibson yells. "You're a f***ing using whore. I own you...You don't count."

The former couple have been engaged in a bitter custody battle, and Grigorieva has recently said that the multimillionaire star has failed to pay child support; she has filed a restraining order against him.

Grigorieva and Gibson continue to squabble about money in the new clip -- and the conversations turns to a Latina woman who does work at both of their homes, whom Gibson calls a "wetback."

"I will fire (name omitted) if she's at your house," Gibson says. "I will make it known and fire her. I'll report her to the f***ing people that take f***ing money from the wetbacks, ok?

As the fight goes on, Gibson bellows, "f*** you. You're a f***ing whore."

Defending herself, Grigorieva says, "I've given you everything. I've been your woman. I've given you a child."

The actor's reply: "You would have done it for any f***ing (person)," Mel screams, accusing her of sleeping with another man.

"You own me with my liver and my kidneys and my soul," Grigorieva retorts at one point. "You control me, like marionette … I walk on eggshells with you." "

As they quibble about money Gibson allegedly spent on Grigorieva's music career, Gibson goes off on an even more violent tirade.

"You f***in' ignorant b*tch?! I don't understand you! You're saying stupid sh*t! How dare you f***ing even insult me with some of the stupid reasoning you have? Your logic sucks, because you're a f ***ing mentally deprived idiot!"