The acronym for "The Upside Down" is "TUD"! If we add "Holiday" after the "The" it spells "THUD"! What is THUD best known for? For being a game pitting many dwarf pieces against one troll piece! What are trolls all about? They're a mythical creature that guards the underside of bridges! A bridge is part of the last name of famous Harry Potter villain Dolores Umbridge! Who wrote her? British gazillionaire author JK Rowling! Another successful British author? Terry Pratchett, writer of THUD!, a book about the political relationships between dwarfs and trolls.
They're mythical creatures that guard the underside of bridges! "Underside" also sounds like "Undertale", a video game by Toby Fox! Fox... Fox news, owned by Rupert Murdoch, whose last name was used in the CBC police procedural series "The Murdoch Mysteries" as the name of the main character! "Character" is often abbreviated to "char" in certain programming languages. "Char", now, is a recurring character in the Gundam universe, which is Anime! Anime is often used by trolls to upset people and is a banned topic in the Penny Arcade forums, which are now conglomerated into a singular forum called "The Upside Down"!
My ongoing quest to ask Larlar if he's a good source of Malarlarkey: NEW SCHEME HATCHING