Bilirdim circulates online as a short, shareable soundboard clip rather than a widely documented meme with a clear single source, so its appeal comes from the word itself and the knowing tone in which it is spoken. In Turkish, bilirdim roughly conveys that someone would have known or already knew something, which makes it a natural shorthand for hindsight in short videos and streams. Creators reuse it because it needs no translation in context: the timing after a reveal tells viewers exactly what is meant, and its brief length fits fast-paced edits, reaction clips, and repeated jokes.