Meaning of herky-jerky

herk•y-jerk•y

Pronunciation: (hûr'kē-jûr'kē), [key]
— adj.
  1. progressing in a fitfully jerky or irregular manner: a herky-jerky home movie shown on an old projector.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.