What term describes a work of literature that humorously applies epic poetry conventions to trivial subjects?

The term that describes a work of literature that humorously applies epic poetry conventions to trivial subjects is "Mock Epic." This literary form takes the grand style of epic poetry, which typically deals with serious themes, noble figures, and significant events, and applies it to mundane or trivial matters, thereby creating a humorous effect. The juxtaposition of lofty language and grandiose themes with petty or silly subject matter highlights the absurdity of the situations being depicted.

In literature, a Mock Epic often employs the same structural elements as a traditional epic, such as elevated diction and formal themes, but does so in a way that parodies the original intent of those conventions. This creates an ironic contrast that can both entertain and critique the conventions of epic poetry itself.

Other options like Parody, while similar, generally refer to a broader range of imitative works that aim to mock or imitate for comedic effect, not limited specifically to the epic form. Satire critiques societal issues or vices, often in a more serious context, whereas Tragicomedy blends elements of tragedy and comedy, which does not specifically focus on the conventions of epic poetry.