666
liù liù liùlit. “six six six”
What it means
The Chinese internet's universal approval signal — meaning 'smooth,' 'awesome,' or 'well played.' The number 6 sounds like 溜 (liù, 'smooth/skilled'), so triple 6 is the ultimate praise for a slick move.
In real conversation
这操作太6了！
Using 6 alone as an adjective meaning 'skilled.'
666，这波操作我服了。
The classic livestream chat reaction.
刷一波666
What streamers say to encourage audience engagement.
The deeper story
Why six?
The number 6 (六, liù) is a homophone for 溜 (liù), which means "smooth" or "skilled." In Chinese internet culture:
From gaming to everywhere
666 started in livestream chat — viewers would type "666" in the danmaku (bullet comments) when a streamer pulled off an impressive play. From there it spread to:
The number slang family
Chinese internet has a whole system of number-based slang:
| Number | Meaning | Origin |
|---|---|---|
| 666 | Smooth, awesome | 溜 (smooth) |
| 888 | Wealth, good luck | 发 (wealth) |
| 520 | I love you | 我爱你 (homophone) |
| 233 | Laughter | Bilibili emoji code for laughing |
| 250 | Idiot | Old slang for a foolish person |
What 666 is NOT
In Chinese internet, 666 has nothing to do with the Biblical "number of the beast." That association doesn't exist in Chinese culture. If someone types "666" in a Chinese comment section, they're praising someone, not making a satanic reference.
How to use it
The beauty of 666 is that everyone understands it instantly — no explanation needed, no Chinese required. It's one of the few pieces of Chinese internet slang that's genuinely universal.
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