The repeated character in the original title means dot, and online that string of dots has become shorthand for trailing off, hesitation and having no response. In chats and comment threads, an ellipsis often does the work of a whole reaction, signalling embarrassment, doubt or patient waiting without spelling anything out. Creators carried that habit into short videos, using a dot dot dot sound in place of the punctuation. It remains popular because almost every viewer recognises the pause instantly, whatever language they normally type in every day.