A flat piece of wood with a groove in the upper surface, which can be fitted under the wheel of a wagon, etc., to act as a brake when descending a steep slope.
Origin
Late 18th century.
Definition of lockshoe in US English:
lockshoe
noun
historical
A flat piece of wood with a groove in the upper surface, which can be fitted under the wheel of a wagon, etc., to act as a brake when descending a steep slope.