shillogy Share definition Flag (n.) A successful one-shot work of fiction that gets whorishly expanded into a series for the sake of making even more money. "Lord of the Rings"? That's a trilogy. But The Matrix "Trilogy"? Sorry, bud -- that's a shillogy. shillogy by Pig-Iron May 16, 2013 0 0 Get merch Get the shillogy mug. Buy Now — $32.95 See more merch