A thread for discussing theories, interpretations, memes, or headcanons that went on to be adopted by the wider fandom.
Before Cadance became the pizza pony, a meme spread throughout the fandom that Luna was obsessed with grilled cheese. After Luna reappeared in season 2, her new look and personality largely put the woobie S1 Luna stuff to bed. Since she was still isolated and unsocialized in Luna Eclipse, a meme was born that she was a gremliny NEET shut-in. Combined with her speaking habits, that character interpretation led to glorious grilled cheese becoming a meme. It was the proximate predecessor to gamer Luna, which quickly overshadowed it.
Glorious grilled cheese was popular on Ponibooru, but it didn’t survive past the fall of the site.