Definitions by TheBloodyAussie

Australian Brown Kangaroo 

The act of shitting on someones chest, and then jumping up and down on them like a kangaroo.

"I saw your girlfriend last night."
"Oh really."
"Yeah, I did the Australian Brown Kangaroo!"
"You asshole!"

Australian Brown Kangaroo by TheBloodyAussie July 20, 2012