vaccinated with a Victrola needle

vaccinated with a Victrola needle

Someone who chatters incessantly. Victrola, a division of R.C.A. Victor, was a brand of phonograph players. Since phono records were played with needles that picked up the sound vibrations in the record's grooves, to be vaccinated with a Victrola needle, as the joke implied, was to be inoculated with the gift of nonstop gab.
See also: needle, vaccinate