"Thus thus" is an uncommon phrase that is not typically used in everyday language. However, there are several synonyms that can convey a similar meaning. Some synonyms for "thus thus" include "so, so," "therefore, therefore," and "consequently, consequently." These phrases are often used to indicate a logical conclusion or a cause-and-effect relationship between two events. Additionally, synonyms like "hence, hence," and "accordingly, accordingly," can be used to convey a sense of continuation, indicating that something is happening as a result of what has already occurred. Ultimately, "thus thus" is a rarely used phrase, but there are plenty of synonyms available to express the same meaning.