What is another word for spouter?
Pronunciation: [spˈa͡ʊtə] (IPA) 
The term "spouter" is often used to refer to someone who speaks excessively, particularly on a given topic. However, there are a variety of other words that can be used to describe this kind of person. Some potential synonyms for a spouter might include "blabbermouth," "jabberer," "motor-mouth," "yakker," "prattler," "chatterbox," "windbag," or "loquacious person." Each of these words conveys a similar sense of somebody who talks too much or too often, often without considering the perspectives or thoughts of others. When seeking to describe somebody who might come across as overbearing or long-winded in conversation, any of these terms could be a good place to start.
