Washington (AFP) – Lawyers for Amber Heard on Monday ended their marathon grilling of Johnny Depp at his defamation trial against his former wife by playing audio recordings of heated arguments between the couple. “Shut up fat ass,” the “Pirates of the Caribbean” star is heard telling Heard in one recording played for the seven-member jury hearing the case in Fairfax County Circuit Court. In another audiotape, the 36-year-old Heard, who had a starring role in the movie “Aquaman,” accuses Depp of having “beat the shit out of” her and throwing a “swing” at her. Depp has denied ever being physica…