British CS2 pro player William ‘Mezii�?Merriman has made esports history by becoming the first player to get a custom hashtag on X (formerly Twitter). The Team Vitality player now has two branded hashtags: #kingmezii and #mEZii, both showing a yellow-and-black ‘M�?with a crown, reflecting his rising status.

Mezii revealed them on July 23, 2025, with X’s official UK account and many big names joining the online celebration. He also teased a major update coming on July 25.

This year has been huge for Mezii. In June, he became the first UK player to win a CS Major when Team Vitality took the top prize at the BLAST.tv Austin Major. Since February, the team has not lost a single event, winning titles at Intel Extreme Masters (IEM), BLAST Open Spring, BLAST Rivals, and ESL Pro League Season 21.

Mezii is now seen as one of the UK’s top esports stars. Based on data from Esports Earnings, he has earned $935,135 (£690,868) in career winnings, second only to Jaden ‘Wolfiez�?Ashman, who made $1.3m (£960,469) in Fortnite.

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