dirty oyster

Cuming in a girls ass and then sucking it out.

Man, last night i gave her a dirty oyster... then threw up.

by Choondler April 10, 2006

Dirty Oyster

When you have a chest infection, but still keen to give oral sex to your significant other. So you cough up a bit of green phlegm and spit it on them down under for a bit of extra lubrication.

Friend: "Hey, how have you been with this chest cold lately?"
"Yeah, good I gave my partner the Dirty Oyster last night."
Friend: "Oh that's nasty man."

by poida225005 November 29, 2021