Green’s Dictionary of Slang

marone a mi! excl.

general excl. as imported by southern Italy immigrants and their descendants, ‘Mother of God!’, ‘For crying out loud!’, ’What in the world?’, etc.

[US]H. Selby Jr. Last Exit to Brooklyn 283: YA CRAZY FUCK I/LL BREAK YA FUCKIN LEGS. VINNIE SHOOK HIS HAND IN MARYS FACE THEN TURNED AWAY AND SLAPPED HIS FOREHEAD, MARONE AME, WHATTA IDIOT [...] YA FUCKIN STUPID. MARONE AME, SHAKING HIS HAND IN FRONT OF HIM.