mash

(uncountable) A mass of mixed ingredients reduced to a soft pulpy state by beating or pressure; a mass of anything in a soft pulpy state.

(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.

Mashed potatoes.

A mixture of meal or bran and water fed to animals.

(obsolete) A mess; trouble.