To explain to everyone that does not get the joke, this egg is a kinder surprise, it contains a small toy inside of it. The 1938 Federal Food, Drug, and Cosmetic Act contains a section highlighting that a confectionery product with a non-nutritive object, partially or totally imbedded within it, cannot be sold within the United States, unless the FDA issues a regulation that the non-nutritive object has functional value. Tl

Tl;dr, it's got shit in it that isn't edible.