Define Pirate Treasure Meaning

Pirate's Treasure
While fucking a skank in the ass, you strike a solid turd plug. Upon discovering this buried treasure deep in her booty, you scream, "ARRRRGHHH!", like a pirate.

Last night sucked, man. I was ass-fucking your sister and hit Pirate's Treasure. That girl needs to eat more greens.
By Lillis