Mash, n. [Akin to G. meisch, maisch, meische, maische, mash, wash, and prob. to AS. miscian to mix. See Mix.]
1. A mass of mixed ingredients reduced to a soft pulpy state by beating or pressure; a mass of anything in a soft pulpy state. Specifically (Brewing), ground or bruised malt, or meal of rye, wheat, corn, or other grain (or a mixture of malt and meal) steeped and stirred in hot water for making the wort.
2. A mixture of meal or bran and water fed to animals.
3. A mess; trouble. Beau. & Fl.
Mash tun, a large tub used in making mash and wort.