ratter

He was a very good ratter, and also killed many snakes against which I pitted him.

He was first bred by the mill hands in the Midland counties of England where he was famous as a ratter.

I don't blacklist no man in the dark, and I've said a heap more to that old ratter's face than I've ever said behind his back.

But then he's just as good a ratter as any black-and-tan you ever saw.

But Jip it was who, scratching at the foot of the slab like a good ratter, made the discovery which led to our final success.