Definition of "foghorn" [fog•horn]

• Nautical A horn for sounding warning signals in fog or darkness, used especially on ships, buoys, and coastal installations. (noun)
• A booming, insistent voice. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "i am constantly reminded of that little chickenhawk feller who used to appear in foghorn leghorn cartoons."
• "So I write here today once again, simply trying to be a "foghorn" in the midst of the religious smokescreens that are thrown up daily by the modern day "ministers" of God."
• "The rise of the Tea Party owes a great deal to Rupert Murdoch's Fox TV, the foghorn of extremism that changed the nature of political discourse."