Green’s Dictionary of Slang

(S.Afr.) a Dutchman.

1970		informant in DSAE.
1977		D. Muller Whitey 84: Trust my luck to marry the only Kaaskop in the world who was not a tightwad.
1988		C. Robertson in Star 31 May 4: We call one another Kaaskoppe, Boere, Hotnots, Porras or Seekajers, Yanks, Pommies or Rooineklce, Aitaais, Kefliegrieke, Kafirs or Bantu ... Dias laid the cornerstone of the ‘Porras’; Van Riebeeck that of the ‘Kaaskoppe’ [DSAE].