Because in the absence of any good idea, marketing people will just grasp at straws, the fine folks at Oreos have decided that they needed to mash their cookies up with gummy fish. Not just any gummy fish, but Swedish fish, the ones coated in mineral oil, so if you eat too many, you’ll experience a violent migration of said fish, straight out your ass.
I think the only thing I can really say beyond that is to repeat their description from a review on The Impulsive Buy:
In this review of the new Oreos by The Impulsive Buy, the “chemical cherry fish paste” filling is described as “not perfectly pillowy, soft, and squishy. It’s a little more sticky, chewy, and dare I say…slimy.” Swedish Fish Oreos will appear in limited release this month.