Pug \Pug\, v. t. [imp. & p. p. {Pugged}; p. pr. & vb. n. {Pugging}.] [Cf. G. pucken to thump. beat.] [1913 Webster] 1. To mix and stir when wet, as clay for bricks, pottery, etc. [1913 Webster] 2. 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. [1913 Webster]