Listed simply as an Irish sound, this clip has no confirmed source recording, character or release year, and it circulates purely as a standalone viral voice bite. Its humour comes from the accent, the phrasing turning that into dat, and the drawn-out delivery that makes a plain question sound like a catchphrase. Shared on soundboards and in short-form edits, it survives because it needs no context to work: any baffling appearance can be captioned by the same confused question, making it reusable across memes, streams and reaction videos.
About this sound
An Irish man loudly asks who's horse is that in a confused, drawn-out voice. People use it as a random reaction clip for odd or unexpected moments online.
The clip is a short voice recording of a man with a strong Irish accent asking who's horse is that, stretching the last word for comic effect. His tone is genuinely baffled, loud and slightly echoey, like it was shouted outdoors or in a yard. There is no music or other sound, just the one confused question repeated in spirit by its delivery. Played out of context it feels absurd and oddly catchy, which is why viewers tend to laugh, replay it, and drop it into videos whenever something random or unexplained suddenly appears on screen.