Green’s Dictionary of Slang

(S.Afr.) to die; thus gaan vrek, drop dead.

1913		C. Pettman Africanderisms 542: Vrek, [...] To die, especially of animals; when used of men it is suggestive of contempt.
c.1929		S. Black Love and the Hyphen in Gray Three Plays (1984) 104: A Johnny who called him Hay-Whotte [...] Cashed a crowd of dud cheques. Well, I hope that he vreks. Such a blighter deserves to be shot.
1966		C. Van Heyningen Uys Krige 119: Koos [...] speaks with neither awe nor self-pity of his own coming death: he is going to ‘vrek,’ the same process that a dog or an ox goes through.
1977		C. Hope Ducktails in Gray Theatre Two (1981) 59: The night they drove into Swartkops Bridge. Both vrekked . . .
1981		C. Hope Separate Development 157: With Molefe you pay or vrek. End of story.
1990		Personality 15 Jan. 17: English goes from bad to worse as [...] Prince Charles rewrites Shakespeare — and Hamlet vreks [DSAE].