No confirmed original source is given for Irreal, so the clip is best understood through its use as a Portuguese reaction sound linked to the name LucasFlicky. The phrase isso nao pode ser real needs little context, because the stunned tone carries the meaning across languages. Short voice reactions like this spread easily through gaming videos, meme edits, and chat shares, where a recognizable line can replace a typed reply. It stays useful because disbelief never goes out of style online, and the short delivery makes the reaction easy to reuse.