Manuellsen is a German rapper whose blunt, confrontational persona has made short clips of his voice popular in German meme and soundboard culture. This three-slap clip circulates as a shorthand for a deserved smack, especially in edits where someone talks too much or gets put in their place. Its appeal is partly linguistic: backpfeife is a vivid, old-fashioned German word for a slap, and hearing it acted out three times makes the insult feel both harsher and funnier. Because the sound is short, loud and instantly readable, it continues to appear in reaction videos, gaming clips and social edits.