"[drive] a wedge" 的定义和意义

What is the origin of the idiom "drive a wedge" and when to use it?

The origin of the idiom "drive a wedge" can be traced back to its literal meaning. The use of wedges as tools to create separation or division predates the idiomatic expression. In carpentry and other manual trades, wedges are used to split or drive apart objects or materials. It is commonly used in discussions related to interpersonal relationships, politics, social dynamics, and conflicts.