ExpKing circulates as a user-generated soundboard clip rather than a widely documented release, so its exact origin is not clearly established in public sources. That has not stopped it being shared as a short meme sound for reactions and edits, where the name itself becomes part of the joke. Soundboard users tend to keep clips like this in rotation for streams, gameplay videos and short-form posts, bringing it back whenever a moment needs a quick, recognisable burst of humour. Its staying power comes from that flexibility, not from a single viral video.