1. (verb) To speak or utter rapidly and incoherently, especially in a state of excitement or agitation:
Example: "He was gibbering nonsense after the accident."
2. (verb) To chatter or talk rapidly and excitedly, often about trivial or unimportant matters:
Example: "The two friends were gibbering away about their favorite celebrities."
3. (noun) Meaningless or unintelligible talk or speech:
Example: "Her words were just gibber to me."
4. (verb) To make a chattering or rattling sound:
Example: "The monkey gibbered as it swung through the trees."
5. (noun) A rattling or chattering sound:
Example: "I could hear the gibber of monkeys in the distance."
It's important to note that the usage and connotation of the word "gibber" can vary depending on the regional and cultural context.