noun, adjective - dull ache perceived in the epigastric area after consuming a Sterie Stumpie milkshake. Thought to be associated with the curdling of unpasteurised milk combined from various petting zoo animals ie cows, goat, pony, llama and so on and so forth.
Hey Andy, what's up, you ok??
Nah dude, just smashed a Sterie too quick, and now I'm dealing with a bad case of Sterie belly.