Chinese idiom · 成语
鱼龙混杂
Meaning
Fish and dragons jumbled; a mix of good and bad.
Character by character
Origin and story
Literary expressionThe contrast between ordinary fish and extraordinary dragons gives this expression its image of very different kinds of people mixed together. The Ministry of Education records the exact phrase in chapter 94 of Dream of the Red Chamber, where a crowded household and many people handling its affairs make matters difficult to untangle. It also appears in Wenming Xiaoshi for a crowd in which worthy and unworthy people are hard to distinguish.
A related expression, 龙蛇混杂, is documented in Chan Buddhist literature for ordinary people and sages living together. That is a parallel image, not proof that the exact fish-and-dragon wording began in the Tang dynasty. No separate founding adventure is needed to explain the metaphor.
In everyday life
这个二手交易群里鱼龙混杂，付款前最好核实卖家的身份。
This secondhand trading group contains all sorts of people, trustworthy and otherwise, so it is best to verify the seller's identity before paying.
Usually warns that good and bad people are mixed together; it is not simply a compliment about diversity.