Cože is a common Czech colloquial way of saying what, often used when someone is surprised, confused or cannot believe what they have just heard. This louder version takes that everyday reaction and turns it up for comic effect, which is why it works so well in short-form video and meme edits where a reaction has to land in under four seconds. Creators outside Czech-speaking audiences also reuse it as a universal sound of disbelief, because the tone alone carries the meaning even when viewers do not know the exact translation.