More oyster is a common term used to refer to the act of consuming additional oysters. However, if you're looking for alternative synonyms to use, there are several options available. Some possibilities include "extra oyster," "added oyster," "supplementary oyster," "further oyster," or even "bonus oyster." Additionally, you could use phrases such as "another plate of oysters" or "a second round of oysters" to convey the same message. Regardless of the terminology used, the important thing is to satisfy your craving for these delicious seafood delicacies!