Mel Gibson has been caught on tape referring to one of his staff members as a “wetback,” reports radaronline.com, who heard the tape firsthand. Mel is talking to Oksana Grigorieva, the mother of his youngest daughter, saying: “I will report her to the f**king people that take f**king money from the wetbacks.” Radaronline.com was told that Gibson was referring to turning in his staff member to immigration authorities. Wetback is a slang word derived from the fact that illegal Mexican immigrants would sometimes swim across water to sneak into the States. However, most of what is on the tape is Mel berating his ex-girlfriend. “You look like a f**king pig in heat,” Mel told her. “If you get raped by a pack of n****rs, it will be your fault.” He also threatened: “I am going to come and burn the f**king house down… but you will blow me first.” Oksana claims Gibson hit her in the face while she was holding their baby. In the recording, she asks him in a tearful voice, “What kind of a man is that who would hit a woman when she is holding a child in her hands, hitting her twice in the face? What kind of a man is that?” Gibson responds: “You know what — you f**king deserved it.”