Starfish(n) the anus, or rectum. Also an adj.

Sea Stars. A common name for a class of echinoderms called astoidea. They have five sides and live underwater, commonly feeding on smaller creatures like snails, sponges, bivalves and deposits of algae.

A girl that has no talent or technique for sex. That is, she just lays there spreed out dead in the water, like a starfish.

Noun: A dead fuck. Someone who may lays there, doing nothing, during sex.

When you get so high you are spread out and stuck to your bed like a starfish.

Women that lay still, almost lifeless, with arms and legs spread during missionary sex.