starfish

Meanings

1. Any of various echinoderms (not in fact fish) with usually five arms, many of which eat bivalves or corals by everting their stomach.
2. Any many-armed or tentacled sea invertebrate, whether cnidarian, echinoderm, or cephalopod.
3. A woman (or, less commonly, a gay man) who reluctantly takes part in sexual intercourse, and lies on the back while spreading the limbs.
4. The anus.

1. To assume a splayed-out shape, like that of a starfish.
2. While floating on water
3. To form into a splayed-out shape, like that of a starfish.

Etymology

From star + fish.