The sound circulates online as a short TikTok trend clip, known by the search phrase asking Fiona if a ghost is behind her. Its appeal comes from how easily the question fits almost any spooky or silly moment, from Halloween clips to everyday pranks, without needing extra context. Because the name Fiona is part of how people search for it, the clip is often shared alongside other ghost and reaction sounds, and creators reuse it whenever they want a light scare that ends in laughter rather than fear.