The phrase is Turkish slang built from everyday words, with don meaning underwear and önce meaning first, so the full line works as a mocking instruction. The clip circulates as a short soundboard and meme audio rather than from a widely credited film or song. Its spread comes from repeat use in chats and short videos, where the short length and recognisable wording make it easy to drop in without explanation. It remains popular because Turkish-speaking users instantly get the insult while others react to the sharp delivery.