5 
1 
Download MP3 
With no confirmed original source, this clip has spread purely as a reusable reaction sound on soundboards and in short video edits. Its appeal comes from the unfinished phrasing, where what was tha cuts off the expected word and idk shortens the admission of confusion into internet shorthand. That combination makes it easy to search, save and drop into unrelated contexts. Creators reuse it for fails, glitches, odd animal behaviour and confusing messages, where a short bewildered response is funnier than a full explanation or a scripted punchline.
About this sound
A short confused voice clip of someone saying what was that, I don't know, used as a reaction sound effect for funny, lost or bewildered moments online.
This five second clip captures a flat, genuinely puzzled reaction, opening with a startled what was that before trailing off into an uncertain I don't know. The delivery is casual and unscripted, with a slight pause that makes the confusion feel real rather than performed. There is no music or added effect, just a close, dry voice that sounds like someone reacting in the moment. Placed over a strange visual or an unexpected turn, it punctures the tension and turns bewilderment into the joke, letting the audience share the speaker's complete lack of an explanation.
