1 - Australia (Also known as "The Land Down Under", not to be confused with the song titled "Down Under" by the band called "Men at Work")
2 - The balls, or testicles, of a human male (typically).
1 - "Do you come from the land down under? Where women go and men plunder?"
2 - P1:"I don't know why the snake chose to bite me there"
P2: "Where?"
P1: "Down under... it wasn't fun."
p2:"Oof, I bet."
Traditionally used to denote "in Australia/New Zealand" or "to Australia/New Zealand". Nowadays used to refer to the fictional meme land of Agartha due to the fact that this phrase occurs in the song titled "Down Under" by Colin Hay, that is considered to consitute the official anthem of the aforementioned land.
The sexual act of spitting flem or a loogie into the vagina using it as lube, then proceeding to creampie. The male then eats the mixture of semen and flem.
"Sorry Gary, Can't come to the club tonight, the wife and I are having a Down-Under Pavlova"