The phrase comes from Ivkova slava, a Serbian work centred on the traditional family celebration of the same name, and the line is spoken when an unfamiliar figure turns up and prompts the obvious question. Shared as a short clip, it travelled through Serbian-language meme pages and reaction videos, where its plain, everyday wording made it easy to reuse without translation or extra context. It has stayed in circulation because the situation it captures, spotting someone you cannot place, happens in almost any funny or awkward video.