A giant slug made of vomit or something.

It looked as if a giant slug, about the size of a Crosley car, had wandered through the place.

The body in the bed was utterly hairless, a long boiled-looking pink thing like a giant slug.

The Russian colonists there are battling an alien life form the giant slug.

I had taken apart those giant yellow slugs.

Sixty feet below, the beam met something black and gleaming, muscular as the back of a giant slug.

"I would just leave this place to the giant slugs and move on."

He had thought that monsters were for fighting or fleeing, but the giant slug had only wanted advice.

"I mean, besides flee from the sun every morning as if you were a nocturnal insect or a giant slug?"