The phrase “FBI, open up!” has become a widely recognised internet joke for a sudden, exaggerated police raid, usually played for comedy rather than threat. In this version, a child delivers the line, which makes the mock raid feel sillier and more surprising. The clip circulates on short-form video platforms and soundboards, where creators reuse it as a quick audio punchline whenever a character is discovered, interrupted or caught red-handed. Its brevity and instantly recognisable wording keep it useful across pranks, gaming edits and reaction videos.