https://www.theguardian.com/technology/2023/jul/10/elon-musk-mark-zuckerberg-cuck-twitter-threads > Twitter owner calls Facebook founder a ‘cuck’ as rancour grows over launch of Threads, a competitor to Musk’s network > Twitter owner Elon Musk has suggested he and Mark Zuckerberg should have “a literal dick-measuring contest” in the latest broadside aimed at his rival billionaire.