This sound comes from Cuphead, the run-and-gun game by Studio MDHR that became widely known for its 1930s-inspired animation and voice style after its 2017 release. Short voice lines from the game spread online because they are easy to clip into memes, especially when creators want a retro cartoon feel instead of a modern reaction sound. The "thank you" clip stays useful because it is simple, recognizable to players, and fits cleanly at the end of jokes, gameplay saves, and lighthearted reaction edits.