(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.

(mostly UK) Mashed potatoes.

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

Alternative form of maash (“mung bean”)

(countable, MLE, slang) A gun.

(transitive) To convert into a mash; to reduce to a soft pulpy state by beating or pressure

(transitive) In brewing, to convert (for example malt, or malt and meal) into the mash which makes wort.

(transitive, intransitive) To press down hard (on).

(transitive, Southern US, informal) To press. (Can we add an example for this sense?)

(transitive, UK, chiefly Northern England) To prepare a cup of tea in a teapot; to brew (tea).

(transitive, informal, gaming) To press (a button) rapidly and repeatedly.

To flirt, to make eyes, to make romantic advances.