666 溜溜溜 liù liù liù
Three sixes of pure approval — “smooth!”
The short answer
OnlineNow commonChecked November 2026
666 means “nice, so smooth, masterful”. Typed in gaming chats and comment sections, it is quick praise for a skillful move.
In a chat
- 里昂 Leon
我刚才一个人干掉了五个！
I just took out five players on my own!
- 灯灯 Dengdeng
666！你太厉害了！
666! You're amazing!
- 亮亮 Liangliang
666，下次带我一起玩！
666! Let me play with you next time!
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How to reply
谢谢，小意思！
Thanks, no big deal!
When not to use it
- Do not use it after bad news. It praises skill, so it can read as sarcasm.
- In writing, say 厉害 (impressive).
What it means
The engine is a pun: 六 (liù), six, sounds like 溜 (liū), which means slick or smoothly done. Spam three of them and you have said “smooth, smooth, smooth” — approval for a clean play, a clever trick, or an outrageous photo edit.
Intensity scales by repetition. 666 is praise; 666666 is the crowd going wild. A single 6 is a curt nod.
How people use it
It appears as a bare reaction under videos and in game chats: 这波操作666, “that move was slick”. It can also be sarcastic — praising a spectacular failure — exactly the way English “smooth move” can sting.
One caution for cross-cultural use: outside China, 666 carries the Book of Revelation meaning. Chinese netspeak knows nothing of this; nobody praising your cooking is invoking anything sinister.
Where it comes from
The code started in the scrolling comments of game livestreams, where viewers filled the screen with 666 after a good play. From there it spread to the whole internet. People take it to mean 溜溜溜 (smooth), or simply 牛 (awesome).
It shares the number-slang family with 520 and 996: digits that say words.
In use
2 examples一局拿了五杀，队友都在公屏刷666。
He got a pentakill in one match — teammates flooded the chat with 666.
这个Excel用得真是666。
The way you work that spreadsheet is seriously slick.
The characters
Explore individuallyIndividual character meanings do not always explain the meaning of the whole word.
Sources
This guide is original Dengdeng editorial content, offered under CC BY-SA 4.0. The linked dictionary entries adapt CC-CEDICT under the same license.