'Докс' is Russian internet slang for doxxing, publishing someone's personal data, and 'жди' simply means 'wait' — so the phrase is a tongue-in-cheek threat familiar to Russian gaming and chat culture. The clip's metadata shows it was run through an online voice changer, and it has no known character, film, or viral video behind it; it is a user-made meme sound. It circulates on soundboards and in short edits where a deadpan voice promising a dox works as an instant joke.