毒寡妇
[dú guă fù]
It can mean a toxic widow or poisonous woman; Someone considered lethal or dangerous, typically in social or relational aspects; It carries quite a harsh undertone. Often used negatively or sarcastically to depict someone who supposedly brings bad luck or misfortune to others around them, or possesses destructive power over those she engages with, especially males (such as in old legends or tales about women turning husbands into ill fate). But now it may also be taken humorously in some context.