Originally Posted by
Strongers
Good grief, Strongers! If you google it you get:
What is a saggarmaker's bottom knocker?
What's My Line? was a Classic British television panel game from the 1950's. Contestants with unusual occupations sign in, perform a mime of the job that they do, then field yes-or-no questions from four celebrities aiming to work out the contestant's job.
The weirdest occupation on the programme is widely believed to be a "saggar maker's bottom knocker". Saggars are used to hold and protect pottery during kiln-firing, and by placing various substances in a saggar it is possible to produce dramatic visual effects on the finished pottery.
Producing saggars to the correct specifications required was a skilled job and needs a craftsman - the saggar maker. However, making the bases of the saggars is a less skilled job which can be left to a lesser craftsman, namely the saggar maker's bottom knocker, who makes the bottom of the saggar by placing clay in a metal hoop and literally knocking it into shape.
But I suspect a pub with real knockers and bottoms might be more pleasurable to drink in