Perfectly awful

(This is, of course, borrowed.)

P. D. Q. Bach is a ficticious character, who supposed was a lesser-known inept relative of the famous Bach clan of musical fame. I do not remember the exact details of the gag, but I think it says that P. D. Q.’s father was a maker of toilets, or W. C.’s (water closets) as they were sometimes known. They had several different varieties, but their top-of-the line model was the Claude Achille W. C.  (You might have to think about this one for a minute.)