Green’s Dictionary of Slang

Uncle Ned n.2

(Aus.) a black South African.

[UK]J.H.M. Abbott Tommy Cornstalk 53: ‘One hundred and fifty,’ said the corporal, ‘if she’s a day!’ – and indeed she looked it. A white-headed ‘Uncle Ned,’ who was probably her grandson, strolled about near her. Little niggers swarmed all round.