Run of the mill
The phrase "run of the mill" refers to something that is ordinary, commonplace, or average in quality or performance. It suggests that there is nothing exceptional or outstanding about the subject being described. It can be used to describe a wide variety of things, such as products, experiences, or individuals.
An idiom is a phrase or expression that usually presents a figurative, non-literal meaning attached to the phrase. Does that sound fun? It can be!
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