Ozzie Joke

I have heard or seen this joke in various forms in the last few months, so I thought it needed to be formally shared more.

A koala is sitting in a tree smoking a joint when a little lizard
walks past and looks up and says to the koala "Hey! What are you
doing?"

The koala says "Smoking a joint, come up and have some."

So the little lizard climbs up and sits next to the koala and they have
a few joints. After a while the little lizard says his mouth is dry and
is going to get a drink from the river.

The little lizard is so stoned that he leans too far over and falls into
the river. A crocodile sees this and swims over to the little lizard and
helps him to the side, then asks the little lizard, "What's the matter
with you?"

The little lizard explains to the crocodile that he was sitting smoking
a joint with the koala in the tree, got too stoned and then fell into
the river while taking a drink. The crocodile says he has to check this
out and walks into the rain forest, finds the tree where the koala is
sitting finishing a joint, and he looks up and says "Hey you!"

The koala looks down and says

"Faaaaarrrrk dude.......how much water did you drink?!!"