The exact source of this Unlocked clip is not clearly identified from the available information. What is clear is how people search for and use it: many queries tie it to unblocked soundboard pages, school computer jokes, and access-granted meme edits. That suggests the sound spread more through reposts and utility soundboards than through one famous movie, game, or character. It stays useful because the idea of something being opened, enabled, or bypassed is easy to understand in almost any short edit.