Top definition
This is when you are fucking a fat bitch on the beach and you think you are fucking her big fat stinky pussy but you are really fucking a fold of fat that is filled with slimy moldy crap and sand.
Guy: That was a great fuck. I have never felt a pussy like yours. I always wanted to fuck a fat bitch on the beach. Like a beached whale!

Fat Bitch: I did not feel anything, you were fucking my sandy oyster.
by katalveino skelia October 14, 2009
Get the mug
Get a Sandy Oyster mug for your daughter-in-law Rihanna.