The exact origin of this clip is unclear, but its appeal is easy to trace online, where very short hype sounds travel fast because they fit the rhythm of memes, reaction videos, and short-form edits. 'It's lit' is long-standing slang for something exciting, fun, or impressive, so repeating it in a rushed, stuttering burst turns a familiar compliment into a joke in itself. Creators keep using it because it needs no setup, works over almost any surprising moment, and instantly signals energy without slowing down a fast edit.