1. a body that has absolutely no curves, as if the person has eaten nothing but sausages since birth, resulting in no shape and a greasy sheen on the skin.
2. a body that looks like a sausage.
Bob: "Not since last summer."
Neil: "Something happened! Looks like she stopped exercising and loaded up on the carbs!"
Bob: "Wow,...became a real Sausage Body, eh?"