(slang, derogatory, offensive, ethnic slur) Any dialect spoken by black people.
1981, Maya Angelou, The heart of a woman"He speaks Spanish, but it could be niggerese." John waited until the voices fell.
1992, Clay Reynolds, Franklin's crossingHis drawl lengthened into pure Plantation Niggerese, and he winced with the pain of trying not to speak that way. He knew better, he told himself.
2004, Stanley Crouch, Don't the Moon Look LonesomeThese bitches would fuck a beer bottle if it was black and it could talk some niggerese.