Gibber

['dʒɪbə] or ['dʒɪbɚ]

(verb.) chatter inarticulately; of monkeys.

Typist: Remington--From WordNet

(n.) A balky horse.

(v. i.) To speak rapidly and inarticulately.

Checker: Terrance

A screaming, gibbering maniac writhed in my grasp. Edgar Rice Burroughs. The Gods of Mars.

Inputed by Alan