What is to fill or stop with clay by tamping; to fill in or spread with mortar, as a floor or partition, for the purpose of deadening sound. See Pugging, 2 called?

pug — To fill or stop with clay by tamping; to fill in or spread with mortar, as a floor or partition, for the purpose of deadening sound. See Pugging, 2. (Webster's 1913.)

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