The act of defecating inside a woman's vagina and having her squeeze it back out. Named for bearing resemblance to how moray eels pop out of their holes.
Bob: "My girlfriend has always wanted a pet eel, but I don't want a fish tank."
Jim: "Have you tried giving her a Moray Eel? All the excitement of an eel without the fish tank!"
Bob: "Isn't that sexual?"
Jim: "Yes, that makes it even better!"