All trades have thier stories . Here are some traditional pottery ones .            
               In the pottery world we have always used a "fettling knife" to claen up the edges on a leather hard pot. Being of fine fettle was all cleaned up. Hence   Your uncles "in fine fettle " meant he was dapper . The american vertion is often "He's in fine fiddle today . "
                One pottery in Ohio in the 1850's used to write on the side of the pots "Ol Korect "       ( All corect). Which was shortened to OK .. ( I know there are tons of other stories for OK but this is one of them ) As you know this tradional potter cant spell either!
                Working to a certain size pot meant you put a stick in some clay near the "turning table" and set a pointer to the finished height and width of the desired pot. Making pot after pot the same was called " Sticking to it " .
                "Turning out ware" was a term for making both pottery and wooden bowls : Pottery on a turning table and wood on a laithe .
                Bunging up the door of a kiln ( Cumbria UK ) was bricking up the door and frosting it with a layer of slurry clay from the workroom floor .
                  A bung of pots was a tower of pots in the kiln ( Yorkshire UK)
                  Turning a pot : turning upsidedown and trimming ( Cumbria UK )
                  Turning a pot :Making it on the wheel ( North Carolina )
                  Throwing a pot : Making it on the wheel ( Modern )
                   Jug : a small spouted vessle for poring under a gallon ( England )
                   Pitcher: a very large jug ( UK)
                   Pitcher : a small or large spouted vessle for poring (America)
                   Jug : a vessel closed at the top to less than 2 inches . (America)
                   Bottle:a vessel closed at the top to less than 2 inches (UK)
               

                   More then anyone really wanted to know . All the best Guy