El Silbon is a well-known figure in Venezuelan and Colombian folklore, and the character is traditionally linked to a distinctive whistle. Online, that whistle has spread through horror videos, urban legend explainers and spooky social posts, where creators use it to signal danger or a supernatural presence. The sound remains popular because it is simple, recognizable to many Latin American viewers, and effective even without visuals. It often appears in edits about ghost stories, cursed places and regional myths.