The Big O gets even bigger as she and BFF take MORE than a bite out of the Big Apple!

Ignoring medical experts advice about her burgeoning tonnage the corpulent chatty chowed down with posse in tow all over NYC.

Not only was BFF Gayle King on hand for the engorgement but Oprah also had a group of girls from her scandal plagued Leadership Academy in South Africa to dine al fresco.

First Winfrey  and pals ate shrimp fajitas and potato skins at Planet Hollywood at the crossroads of the world Times Square.

On Sunday the calorie ignorers hit Dylan's Candy Bar as Oprah emerged with supersized bags of Starbursts, Hershey's Kisses and Malted Milk Balls, a source said.

Later, they capped off the binge at celeb friendly ice cream-erie Serendipity III where the popular bill of fare is their famed frozen hot chocolates.

See what being sued for $1.2 Trillion does to you?