Green’s Dictionary of Slang

(S.Afr. black) of clothes or other material objects, smart, expensive, chic.

[1962		W.S. Manojjpu in Star 22 Feb. 14 : [In ‘isicam-tho’] ‘beef’ means to get drunk; ‘guess’ is bad luck, ‘Jewish’ is excellent; ‘jumpers’ is late afternoon [DSAE]].
a.1968		D.C. Themba in Patel World of Can Themba (1985) 36: The tsotsi turned round and looked out of the window on to the platform. He recognized some of his friends there and hailed them. ‘O, Zigzagsa, it’s how there?’ ‘It’s Jewish!’ [DSAE].
1985		H. Prendini in Style Oct. 41: Blacks look at someone who’s well-dressed and announce admiringly ‘Mooi-Jewish!’ [DSAE].
1989		M. Brand in Fair Lady 25 Oct. 92: Zchoosch, elegantly cool [DSAE].
1992		A. Jay on Radio Five 19 Nov. [radio] If you wear this tie you’ll be the jujiest oke in Cape Town [DSAE].