Green’s Dictionary of Slang

(S.Afr.) to swim.

1970		Beeton & Dorner in Eng. Usage in Southen Afr. I:2 11: Ghoef, [...] school-boyism for ‘swim’ or ‘go swimming’ [DSAE].
1975		‘Blossom’ in Darling 12 Feb. 119: ‘Aren’t we gonna goef?’ I screech. ‘In this heat?’ [...] ‘Shore, we gonna goef. I jis said, no cozzie.’ [DSAE].
1987		Fair Lady 21 Jan. 144: Surely there are no longer 14 year olds talking of [...] goeffing in the Linden Municipal Baths [DSAE].