Australian Keg Stand

The act of doing a keg stand through the butthole to effectively chug (or as it is also known formally; boofing) through the ass to consume alcohol. The term Australian referring to the fact the chigging is being done down under.

"Yo! Did you see Andre just straight up do an Australian keg stand right in the middle of the party infront of everyone?"
"I know bro that was insane! Talk about boofing right!?"