mud kicker

Noun

mud-kicker (plural mud-kickers)

1. (slang) A racehorse.
   • Alexander, who would become Cook's closest associate, gave him a tidbit of trainer science about what he had to do to be able to run the same track with all those experienced mud-kickers: "if you can't sing loud enough just make sure they understand what you say."2005, Arthur Kempton, Boogaloo: The Quintessence of American Popular Music, →ISBN, page 82
2. (slang) Streetwalker; a prostitute who looks for customers in public places, especially one who works for a pimp.
   • Lay off the broads and the high priced mud-kickers.1974, James Vernon Hatch, Ted Shine, editors, Black Theater, U.S.A., page 446
3. (slang) An unskilled laborer; One who makes his living by outdoor manual labor.
   • They're army guys, mud-kickers, for God's sakes.1998, Keith Douglass, Seal Team Seven 06, →ISBN
4. (slang) A workboot designed for outdoor work, especially one that can be worn on muddy ground.
   • And, yes, if you sell pharmaceuticals to farmers, you may show up in a sports coat or pants suit, but you also have a pair of mud-kickers in the trunk, all of which is part of the “dress code” for your market.2008, John Ingrisano, The Back to Basics Book of Selling, →ISBN, page 24