The mystery meat behind McDonald’s elusive McRib sandwich is officially headed for its day in court, and the allegations are enough to make any fast-food fan’s stomach turn. A federal judge has shockingly refused to dismiss a bombshell class-action lawsuit that accuses the Golden Arches of perpetrating a delicious, decades-long fraud on the American public.

The suit contends that the McRib’s iconic name, its distinct rib-like shape, and its premium-price, limited-time-offering mystique have hoodwinked millions into believing they’re sinking their teeth into succulent, expensive rib meat. The chilling reality, the plaintiffs allege, is a far grislier picture: a mishmash of lower-grade pork parts, potentially including shoulder, heart, tripe, and stomach. That’s right—what you thought was a treat might be closer to offal.

McDonald’s, in a statement dripping with corporate indignation, fired back, calling the claims “meritless” and insisting they’ve “always been transparent.” They flatly deny using hearts, tripe, or stomach. But U.S. District Judge April Perry wasn’t buying the full dismissal. In a ruling that sends shivers through the fast-food giant’s legal team, she declared that it’s not “unreasonable for a consumer to believe that the McRib contains rib meat.” The name itself, she implied, is a powerful promise—one the company may have knowingly broken.

The judge even hinted at darker motives, suggesting that advertising focusing on the sandwich’s rib-shaped silhouette could support an intent to defraud. “Plaintiffs’ proffered understanding of ‘McRib’ is not unreasonable or fanciful,” Perry wrote, opening the door for a juicy courtroom showdown over truth in labeling.

This isn’t just about a sandwich; it’s a battle over the soul of marketing itself. Has McDonald’s been selling nostalgia and clever shaping instead of a premium product? For the legions of McRib devotees who treat its return like a national holiday, the potential betrayal is profound. The lawsuit promises to peel back the curtain on one of fast food’s most cherished cult items, and what’s revealed might just kill the craving for good. The discovery process alone could be a horror show more frightening than any Halloween special. Rib meat or mystery meat? The court will now decide.