VERB
急促不清地说；语无伦次地说
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...
随着开演时间逼近，大家都紧张起来，慌里慌张地念着台词。
I was a gibbering wreck by this stage.
我到这时候说话已颠三倒四，神经高度紧张。