Some one told me once it was something to do with one's spine.

Sarah has something the matter with her spine, poor girl.

My word, I never knew a bush so set with spines!

With his spine so straight, it made him look as if he were praying.

He turned to face Tom, who sat with his spine against the cold rock, knees drawn.

It was hard and covered with spines on the bottom side.

A thing with spines and a head like a cold sun slid in front of him.

Up to 34cm long with short, rigid spines over the body.

The skin is a uniform dark brown with small spines throughout.

It is the only sea snake with spines on the head.