Sean ‘Diddy’ Combs has a new disturbing abuse claim against him as the former music producer sits in his “hellhole” jail cell following an ongoing list of accusations.RadarOnline.com can reveal the disgraced music mogul has been accused of “brutally, orally raping” a man in a Macy’s store.In a new lawsuit, an unnamed John Doe claims he was “brutally” assaulted by Diddy in a stockroom at the flagship Macy’s department store in New York back in 2008.He claims he was in a back room for Ecko clothing when the disgraced star entered, along with three of his armed bodyguards.The victim claims…