This clip circulates as a general reaction sound on soundboards and in short form video edits, rather than being tied to one confirmed scene or creator. Its popularity comes from how universal the line is, since almost any strange forward, screenshot or out of context clip can set it up. Creators reuse it in meme compilations, Discord soundboards and comment style edits where a baffled response is funnier than an explanation. The phrasing is also searched in variants like bro who tf are you, showing how people remember it by its tone.
About this sound
A confused voice clip of a guy asking bro who tf sent me this, used as a reaction to weird, random or cursed messages, videos and memes online.
The sound is a short voice reaction where a young man sounds genuinely baffled and annoyed after receiving something unexpected. His delivery starts casual and quickly turns incredulous, with the emphasis landing on the disbelief in his voice. It captures that exact moment of opening a DM, group chat or video and having no idea why it was sent to you. Viewers instantly recognise the feeling, which makes the clip work as a punchline on its own without needing any extra context or explanation.