Got a fantastic protein shake recipe just for this occasion. First, you take that century egg, and smush it in the blender with some of that Chi Chi from the Coco Palms Resort reserve they brewed back in '81.
Can't take all the credit of course, it's a well-known traditional Kauai recipe. I hear Ben Affleck uses it all the time.
(if you've not watched this particular South Park episode none of this will make any sense of course)