Used mainly by white (young) South Africans to refer to their male parents or anybody older than themselves.
Is similar to the Afrikaans 'oompie' (Uncle), or 'fogie'.
Guy #1: Dude, I wanted to naai that cherry at my possie last night, but my fuckin' ballies were hanging around the whole time.
Guy #2: That's pretty kak. So no aksie for you then, hey?
Guy #1: Not exactly. Bend over, bitch.