Rapid Unscheduled Disassembly
(aka RUD) It went BOOM! Lessons learned for next time. After all, it is just a flesh wound.
More info:
- https://www.dailymail.co.uk/news/article-14295123/elon-musk-spacex-explosion-spacecraft-mocked.html
- https://economictimes.indiatimes.com/news/international/global-trends/spacexs-starship-explodes-in-test-flight-elon-musk-says-success-is-uncertain-but-entertainment-is-guaranteed/articleshow/117336553.cms