Hard yakka is the term Aussies give to hard work, as in 'it was hard yakka digging up the garden'. The word 'yakka' is derived from an Aboriginal word for work. Hard Yakka is also a brand of Aussie workwear.
A hills hoist is an Australian invention - a type of outdoor clothes line. Height adjustable rotary style, it is common in our backyards (with so much sunshine it's the cheapest way to dry our clothes). It's also great fun for kids who, no matter how often they are told not to, hang on to the wires and spin around for a ride.