Green’s Dictionary of Slang

(S.Afr. teen) acne, a spot, a pimple.

1970		informant in DSAE (1996).
1974		in J. & W. Branford Dict. S.Afr. Eng. (1991) .
1983		Sun. Times (Johannesburg) 8 May n.p.: You use it when you have chorbs [...] It’s a pimple cream.
2003		Clarke & Tyson Laugh, the Beloved Country 142: And there’s this fat ou too with chorbs what the other usherettes reckon comes to every singal [sic] showing of Julie Andrews.