Kvadrober refers to participants in quadrobics, the online trend of moving on all fours and imitating animals while wearing masks, ears and tails, which spread widely across Russian language TikTok and short video feeds. Short name callout clips like this one became a shorthand inside that community, used to label a person in a video without explaining the joke. The Ayaz version circulates as a compact meme sound, reused in edits, comment replies and remixes where the quadrober reference is already understood by the audience watching.