"Dick and Harry" is a colloquial phrase that is often used to refer to two unspecified or insignificant people. However, there are several synonyms that can be used in place of this phrase. For example, one can use "John Doe and Jane Doe," "Tom, Dick, or Harry," "Joe Blow and Jane Doe," or simply "anyone and everyone." These phrases can convey the same idea as "Dick and Harry," but they are more versatile and can be used to refer to a group of people rather than just two. Ultimately, choosing the right synonym depends on the context and purpose of the conversation or writing.