A koala is sitting up a gumtree smoking a joint when a little lizard walks past, 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 enjoy a large doobie. After a while the little lizard says his mouth is dry and he is going to get a drink from the river.
But the little lizard is so stoned that he leans over too far and falls into the river. A crocodile sees this, 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 see this, walks into the rain forest, and finds the tree where the koala is sitting with yet another joint. He looks up and says, "Hey, you!" The koala looks down at him and says... "Fu-u-u-u-c-c-k, Dude....... How much water did you drink?!"