If you say that someone is gibbering, you mean that they are talking very fast and in a confused manner.
例句
Everyone is gibbering insanely, nerves frayed as showtime approaches...隨著開演時(shí)間逼近，大家都緊張起來，慌里慌張地念著臺(tái)詞。I was a gibbering wreck by this stage.我到這時(shí)候說話已顛三倒四，神經(jīng)高度緊張。
英英詞典釋義
Noun
1. unintelligible talking
Verb
1. speak (about unimportant matters) rapidly and incessantly