A koala is sitting up a gum tree, smoking a joint, when a little lizard walks by, looks up and says 'Hey koala! What are you doing?'

The koala says: 'Smoking a joint. Come up and have some.'

So the little lizard climbs up, sits next to the koala and they have a few joints.

After a while the little lizard's mouth is dry, so he tells the koala that he's going to get a drink of water from the river. But the little lizard is too stoned and falls into the river.

A crocodile sees him, flailing about, and swims over to see what's going on. The little lizard explains that he was sitting in the tree, with the koala, smoking a joint, got too stoned and fell into the river while trying to get a drink.

The crocodile says that he has to check this out, and walks into the forest to find the koala. He sees him, still sat in the tree smoking a joint, looks up and says: 'Hey you!'

The koala looks down at him and says:

'Fuuuck duuude! How much water did you drink?!!'