Jibber is an informal term used to describe someone who talks nonsense or mumbles incoherently. There are several synonyms for this word, including blatherer, blabbermouth, gabber, prater, chatty Cathy, and motor-mouth. Each synonym has its unique connotation, but they all describe someone who talks excessively, without any real purpose or meaning. People who jibber are often seen as annoying or disruptive as they prevent other people from communicating productively. It is essential to keep a check on one's talking habit and avoid becoming a jibber themselves. By choosing to speak purposefully and concisely, one can avoid being labelled as a jibber and enhance their communication skills.