·noun A machine for cleansing or loosening wool by the action of a revolving cylinder covered with long iron spikes or teeth; a willy or willying machine;
— called also twilly devil, and devil. ·see Devil, ·noun, 6, and Willy.
to turn reversedly : He twillies his toes. He turns them in. North. ...
A glossary of provincial and local words used in England by Francis Grose