Satire needs language that can mock self-seriousness without breaking character. When an author or columnist establishes a lugubrious tone, they are often mocking an institution that takes itself too seriously. The style mimics nineteenth-century Gothic melodrama to expose contemporary pettiness.
Consider political commentary during minor administrative crises. Pundits often affect an air of apocalyptic ruin over routine bureaucratic reshuffles. Calling their commentary lugubrious pins down the exact absurdity at play: the gap between the trivial reality and the tragic face worn by the commentator. The word functions as a diagnostic tool for pretense.
Pop culture relies on this exact archetype constantly. Characters like Eeyore from Winnie-the-Pooh, Marvin the Paranoid Android from The Hitchhiker's Guide to the Galaxy, and Squidward Tentacles from SpongeBob SquarePants survive entirely on comic, exaggerated gloom. Their constant lamentations do not invite audience tears; they invite laughter. That dynamic is the pure aesthetic definition of the term.
