PUG

n. & v. --n. loam or clay mixed and prepared for making bricks, pottery, etc. --v.tr. (pugged, pugging) 1 prepare (clay) thus. 2 pack (esp. the space under the floor to deaden sound) with pug, sawdust, etc. øpug-mill a mill for preparing pug. øøpugging n. [19th c.: orig. unkn.]