polishing wheat
Refers to the process of polishing or hulling wheat grains, typically in a traditional or agricultural context. The term is somewhat specialized and may not be widely used in everyday conversation.
In the old days, they used a stone mill for polishing wheat.
Compound of 麦 (mugi, 'wheat') and 搗き (tsuki, the continuative form of 搗く 'to hull, to pound'). The exact historical derivation is uncertain, but the term straightforwardly describes the action of pounding wheat to remove the hull.