Isso é problema meu is an everyday Brazilian Portuguese expression that literally means that is my problem, often used to tell someone to stop interfering. As a short audio clip, it circulates on soundboards and in messaging apps as a ready-made reply, where a spoken line can answer more sharply than text. Its appeal is its directness and familiarity: listeners recognise the attitude instantly, even without extra context. That combination of brevity, attitude and everyday language keeps it useful for reaction videos, memes and voice-message replies.