1. a person who talks rapidly and incoherently
Usage: informal

Examples

• The nervous jibber couldn’t stop talking during the interview.
• Don’t be such a jibber – slow down and explain clearly.
• The excited child became a real jibber when describing the movie.
• As a jibber, he often confused his listeners with his rapid speech.
• The caffeine turned her into a jibber for the rest of the morning.