The sound comes from Deadly Premonition, the cult survival horror game known for its strange dialogue and offbeat tone. The Italian line studiato, testato, sperimentato translates to studied, tested, experimented, and fans clipped it because the serious delivery contrasts with the game's quirky scenes. Shared on soundboards and in short edits, it became a reusable reaction for anything presented as researched or proven. Its appeal has lasted because the phrase sounds authoritative in any language, even when the thing being approved is clearly nonsense.