Then there's "jibber," which is more properly spelled with a soft g as "gibber"...
gib·ber (jib'ər)
intr.v. gib·bered, gib·ber·ing, gib·bers
To prattle and chatter unintelligibly.
n. Unintelligible or foolish talk.
[Probably back-formation from gibberish.]
So, "gibber gabber" would be talking incessantly and foolishly about trivial things.
Y'know, like people hijacking threads and petty stuff like that.
