The current record for fastest rapper is held by Spanish rapper Chojin, who rapped 921 syllables in one minute on December 23, 2008. It’s an impressive feat, but the only trouble is that at that speed he is totally unintelligible. Good rap isn’t about speed but about rhythm and good enunciation. It’s a shame to write or improvise lots of words and garble them out so that nobody knows what you’ve said. When you’re a professional wordsmith, it’s best not to waste your words.