What is "explodent"

Usage examples of "explodent".

In Kasbeam a very old barber gave me a very mediocre haircut: he babbled of a baseball-playing son of his, and, at every explodent, spat into my neck, and every now and then wiped his glasses on my sheet-wrap, or interrupted his tremulous scissor work to produce faded newspaper clippings, and so inattentive was I that it came as a shock to realize as he pointed to an easeled photograph among the ancient gray lotions, that the mustached young ball player had been dead for the last thirty years.