who was M'Chuckhumchild?

M’Choakumchild is the improbable surname of the grinding, fact-fact-fact school-teacher from the beginning of Dickens’s Hard Times.

Mr. M’Choakumchild began in his best manner. He and some one hundred and forty other schoolmasters, had been lately turned at the same time, in the same factory, on the same principles, like so many pianoforte legs. He had been put through an immense variety of paces, and had answered volumes of head-breaking questions. Please take a look at this excerpt in the source link below.