小辫子

小辫子

Literally means:

short braid

Actually means:

vulnerable point

辫子 refers to braid. Figuratively it means a mistake that one made and could be used by other people for the purpose of blackmail.

It often refers to finding fault with a person or thing that does not seem to have a problem.

辫子，头发分股交叉编成的长条。

比喻可能被别人用来对自己进行要挟的事情。多用于对那些看起来没有问题的人或事情挑毛病。