"Craig flounder" does not appear to be a commonly used term or phrase, and there seems to be no general consensus on its specific meaning or synonyms. It is possible that "Craig flounder" could be a combination of two separate words, such as a name and a fish species, but without further context, it is challenging to provide accurate synonyms. It is recommended to double-check the intended meaning of the phrase or provide more details to offer more precise alternatives or related synonyms.