Abounding in oysters; smelling or tasting like oysters.
The Century Dictionary (Public Domain)
Use "oystery" in a sentence
"If I were going to make something like this, I'd try to figure out how to make interchangeable sashes; I'd want a bluey-green one, and a yallery-orange one, and even for the height of sophistication an oystery-gray/ivory one."
"Hellespontian, eminent most of oystery sea-shores."
"I have no desire to live and work there at the moment - that's for sure - because I have this big oystery world out in front of me, and my brain has well and truly been drained from my hometown."