"That way, when they're talking about her, and someone overhears the conversation, no one knows they're referring to Oprah," the New York Post quoted Kelly as telling Montecito Journal.
Kelley has also claimed in her book that Oprah had "lesbian affairs" in her life. Also, she says that the TV queen once had a fling with former TV host John Tesh.
New York (ANI): TV host Oprah Winfrey"s employees call her 'Mary", it has emerged. The staff, on the set in Chicago, sticks to calling her 'Ms. Winfrey', but outside, she's known by the code name 'Mary', according to her biographer Kitty Kelley.