"Woe to you, Oh Earth and Sea, for the Devil sends the beast with wrath, because he knows the time is short...
Let him who hath understanding reckon the number of the beast for it is a human number, its number is Six hundred and sixty six (666)."
Word used as replacement to lol or hahahha in China. It became a thing in 2000’s on Weibo. Person is free to add as may 6’s as possible, it’s just liek addsing another haha