Updated July 2026
What does 666 mean?
666 (liù liù liù) means pro / sick / nice one in internet Chinese slang. Admiration — 'nicely done', 'so smooth', 'you're killing it'. None of the Western unlucky baggage: 六 (liù) sounds like 溜 (liù, slick). Literally, it means "six six six".
Hear it explained
A 30-second take on 666 — what it means, where it came from, and how to use it.
In Chinese gaming chat, if you do something slick, people spam 666. Why six? Because 六, liù, sounds like 溜, smooth. So it means smooth, skilled, nicely done — none of that Western unlucky stuff. 你这操作太 6 了，666. Pure applause in numbers.
Example
你这操作太 6 了，666！
Nǐ zhè cāozuò tài liù le, liù liù liù!
That move was so slick — nice one!
What 666 goes with
Where 666 comes from
Gamers spammed "666" in chat to applaud a slick play (六 sounds like 溜, smooth). It spilled out of game lobbies into everyday praise.
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