wù​yǐ​lèi​jù

birds of a feather flock together

Senses

物以类聚/ 物以類聚 wù​yǐ​lèi​jù birds of a feather flock together

Things of the same kind naturally group together; nowadays often used in a negative sense to describe bad people associating or conspiring with each other

References

synonym 物以类聚/物以類聚 人以群分/人以群分
synonym 物以类聚/物以類聚 臭味相投/臭味相投
synonym 类聚/類聚 物以类聚/物以類聚