Duff Barn

A Duff Barn, also sometimes referred to informally as a "Duff Device Barn" (though this is less common), is a location or facility dedicated to the design, construction, testing, or storage of Duff's Devices. While rarely a formal, dedicated building specifically labeled as such, the term implies a physical space that acts as a central hub for activities related to Duff's Devices.

More generally, the term can be used humorously to refer to any area where unconventional, often complex or overly-engineered, solutions (akin to the design philosophy behind a Duff's Device) are conceived and implemented. This usage emphasizes the "barn" aspect as a place of creative, though potentially chaotic, activity. The term can also imply a slightly whimsical or self-deprecating tone, acknowledging the potentially unnecessary complexity or eccentricity of the projects undertaken within such a "barn." The scale and complexity of the activities performed would greatly determine whether such a barn is an actual physical building or merely a shared understanding among a group of individuals working on such a project.