The Collaborative International Dictionary of English v.0.48:
Spouter \Spout"er\ (-[~e]r), n. One who, or that which, spouts. [1913 Webster]WordNet (r) 3.0 (2006):
spouter n 1: an obnoxious and foolish and loquacious talker [syn: chatterer, babbler, prater, chatterbox, magpie, spouter] 2: an oil well that is spouting 3: a spouting whale