smockolate
A large, muumuu-like "outfit" that a female or male glutton dons in anticipation of binging on chocolate; an oversized garment (as shapeless as a painter's smock) designed to shield the wearer (or any good clothes currently on their person) from crumbs and stains resulting from sweet snacks that crumble or drip.
"Her white business suit remained unsoiled, despite the copious shards of errant Butterfinger crumbs falling from the wrapper of her afternoon snack, thanks to the impenetrable smockolate into which she changed before her chocolate bender."