Definition of "mudder" [mud•der]

• A racehorse that runs well on a wet or muddy track. (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.

• "But we’re back in mudder territory when it comes to “Morgan Stanley’s Stephen Roach, formerly a cheerleader for globalization,” who has indeed grown more pessimistic, but concludes one especially pessimistic rumination, referenced by Roberts, as follows:"
• "BTW- my "mudder" says the reason I got so much attention was not a result of my comity, but rather that I was a "rotten,rotten" little kid who she needed to strap down lest I reek havoc."
• "COLLINS: Still to come, the sports terms "mudder" is usually reserved for horse racing."