The exact origin of this short clip is not documented, so it is best understood as a piece of Chinese internet slang shared through soundboards and short video edits rather than a line from a known film or show. Pi yan is a common crude slang term, and its appeal online comes from using a taboo word in a quick, low effort way that needs no translation for the joke to land. Creators pass it around for roasts and reaction moments, keeping it alive because a single blunt word can still surprise an audience.