Back in antiquity, when the world was still flat and dragons waited along the edges for hapless travelers, explorers, from a continent now named Europe, came upon an vast island far removed from everything. It was there they beheld many magnificent beasts. Animals with pockets in their bellies, in which to carry their whelps. It was amazing sight to behold to these wide eyed travelers.
The most fantastic, was a creature that stood upright, like a man, but hopped about, like a rabbit. The explorers were fascinated by this beast. When they found the indigenous humans of the vast island, naked savages in their estimation, who needed to be saved from themselves-it was called the White Man's Burden in antiquity-they inquired about this animal that stood upright, like a man, but hopped about, like a rabbit.
The naked savages looked at these pale strangers for a bit. Finally, one of them, a leader perhaps, spoke but a single word;
The explorers found this really quaint what the naked savages called the fabulous beast. When they finally dominated and subjected the vast island, which came to be known as Australia, they named the animal, which stood upright, like a man, but hopped about, like a rabbit, the kangaroo. After all, that's what the naked savages called it.
Here's the irony, kangaroo is aboriginal for;
"I don't know what the fuck you're on about..."