An Aussie favourite.

So there was a lizard who was walking through the rainforest, he looked up in the tree and saw a koala smoking a few joints. So the lizard goes up the tree and smokes a few more joints with the koala. After a little while, the lizard decides to go down to the pond to get a drink for his dry mouth, so he scurries down the tree and over to the pond where there was a crocodile waiting.

The crocodile says "woah man, what are you doing drinking from the pond?" "Well I smoked a few joints with this koala and I have really bad dry mouth," the lizard responded.

In shock, the crocodile says, "fuck me, there's a weed smoking koala? I have to see this!"

So the crocodile climbs out of the pond and walks over to the tree where the koala has smoked 4 or 5 more joints since the lizard left.

The crocodile says, "Hey mate, what are you doing up there?"

The koala looks down in shock and says, "Bloody hell mate, how much fuckin water did you drink?"