Green’s Dictionary of Slang

(S.Afr.) a swim.

1970		informant in DSAE (1996).
1975		‘Blossom’ in Darling 12 Feb. 119: ‘Ag, not now, man, Vern,’ I groan. ‘It’s too blerry hot for smooching, let’s rather jis go catch a goef hey?’ [DSAE].
1991		informant in DSAE (1996).
2006		C. Miller Salt and Honey 164: To the Botha’s [...] for a goef. They’re away for the weekend. They’ll never know we’ve been in their swimming pool.