back•bitePronunciation: (bak'bīt"), [key]
—v., -bit, -bit•ten or (Informal) -bit; -bit•ing.
to attack the character or reputation of (a person who is not present).
to speak unfavorably or slanderously of a person who is not present.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.