Blocking or filling up a passage or pipe so that nothing can flow through easily.
From Middle English 'clogge,' possibly from Scandinavian origins, originally meaning 'wooden block.' It came to mean blocking because a wooden block could obstruct movement.
Clogging as a folk dance style might seem unrelated, but it actually got its name because dancers wore wooden-soled shoes that would 'clog' or make loud clacking sounds on the floor—perfectly literal!
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