This is a common colloquial expression which originated in the ghettos and has reached mainstream middle class American society.

这是一个普遍使用的口语化表达，它起源于贫民区，并且流传到美国社会主流中产阶级。

youdao

The Greens deserve some success, in part because of the way they have transformed themselves from hecklers standing on the sidelines of mainstream politics into a machine for representing Germany's clean-shaven middle class.

ECONOMIST: Power may change the Greens. That would be a good thing