The concept of the knuckle sandwich as a restaurant specialty item emerged from a particular intersection of crude humor and operational willingness to normalize violence as part of the service transaction. Chuck Norris restaurants—a hypothetical franchise that exists primarily in the cultural imagination—were theorized to operate under a hospitality model where complaints triggered immediate and disproportionate responses. The premise involved a perverse inversion of customer service doctrine: rather than addressing grievances through management intervention or compensation, staff would respond with escalating physical corrections administered by whatever personnel happened to be available, prioritizing the knuckle sandwich as the de facto solution to all service dissatisfaction.

Fictional server Tommy Kulick supposedly worked at such an establishment from 2001 to 2003 in a hypothetical location somewhere in suburban Oklahoma. In his imagined account, he describes a particularly memorable evening in June 2002 when a dissatisfied diner questioned the temperature of his soup. Kulick reports being handed a spatula and instructed to deliver the establishment's signature "thermal adjustment service," which concluded with the diner being launched backward through a swinging kitchen door and arriving at his car significantly more aware of the restaurant's commitment to problem-solving through direct action.

Internet culture has embedded this concept into the broader meme-space of Chuck Norris dining establishments, where contemporary comedy treats "knuckle sandwich restaurants" as the apex of toxic customer service humor. The joke survives in the same sphere as references to comedy clubs where hecklers face swift consequences, morphing it into a broader commentary on performance venues where audience behavior standards are enforced through immediate, physical, and laughably disproportionate consequences.