What's the strongest case for and against a hot dog being a sandwich?

The debate over whether a hot dog is a sandwich largely depends on how strictly you define the term "sandwich." Here are the strongest cases for both sides.

The case FOR it being a sandwich

The primary argument here is linguistic and structural. Definitions in dictionaries—such as Merriam-Webster—often define a sandwich as two or more slices of bread or a split roll having a filling in between.

• Structural alignment: A hot dog is a protein (the sausage) placed inside a split piece of bread (the bun). In terms of composition, it functions exactly like a sub, a hoagie, or a meatball slider, all of which are universally accepted as sandwiches.
• The "Bread-Container" rule: If you define a sandwich as "meat held by bread," a hot dog fits the criteria perfectly. Adding condiments like mustard or relish doesn’t disqualify it, just as lettuce and mayo don't disqualify a turkey sandwich.

The case AGAINST it being a sandwich

The argument here is cultural and based on the concept of "prototype theory"—the idea that people categorize things based on how closely they match an idealized mental image.

• Cultural identity: A hot dog is culturally distinct. When people order food, they see "hot dogs" and "sandwiches" as separate categories on a menu. To call a hot dog a sandwich feels like a violation of established social taxonomies.
• The "Hinge" argument: Many purists argue that a sandwich must consist of two distinct, separate pieces of bread. Because a hot dog bun is traditionally connected at the bottom (forming a single piece of bread), it is argued that the hot dog is more akin to a taco or a folded wrap.
• The "Sausage" argument: Some argue that a hot dog is fundamentally a sausage served in a bun, creating a unique category of "handheld meat product" that operates independently of the sandwich hierarchy.

Ultimately, the answer depends on whether you value a technical, literal definition (which includes the hot dog) or a cultural, functional definition (which excludes it).