Listed simply as likr 11 with a wtf tag and the short description wtf bro, this clip has no confirmed source work, character or release year, so its history is really its use as a shareable reaction sound. It circulates on meme soundboards alongside similar stunned reactions like bruh, where short voice lines are saved, replayed and remixed into edits. Its appeal is its plain confusion, which fits almost any baffling video, comment or fail without needing context from an original scene.