Meaning of bejabbers

be•jab•bers

Pronunciation: (bi-jab'urz), [key]
— interj.
  1. (used as a mild oath expressing astonishment, dismay, disbelief, or the like).
—n.
  1. dickens; devil: The fighter's left uppercut knocked the bejabbers out of his opponent.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.