Spouter and Utterer

Spouter noun - An obnoxious and foolish and loquacious talker.

Utterer and spouter are semantically related. In some cases you can use "Utterer" instead a noun "Spouter".

Utterer noun - Someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous).

Spouter and utterer are semantically related. Sometimes you can replace term "Spouter" with "Utterer", this nouns are similar.