heelball
/ˈhilˌbɔl/
noun
- A hard, waxy substance used to polish the heels and soles of shoes, or to make a surface for brass rubbing.
- The cobbler applied heelball to the leather to give it a deep shine.
- He rubbed heelball over the shoe heel until it was smooth and glossy.
- She bought a tin of heelball for her brass rubbing hobby.