A "gay oyster" is another name for a jello shot, which are commonly served at gay bars. Since these jello shots are served in single-serving plastic cups with lids, consuming one is like eating an oyster. You open the lid, loosen the shot from the cup with a finger, and then slurp it down. When a gay oyster is combined with champagne, it is called a royal oyster.
by writerpunk August 10, 2016
Get the Gay Oystermug.