Green’s Dictionary of Slang

(S.Afr. Und.) a latrine.

1987		Frontline Oct. n.p.: In the corner of the cell humming with a malignant presence of its own was the ubiquitous ‘kakpot’ of the old prison .
2005		A. Lovejoy Acid Alex 206: Okay, inside gate open, time for kakpotte. Oh God, how can anybody take this smell? [Ibid.] 209: Put the poke inside the toilet roll next to the kakpot.