n. 1 soft or confused mixture. 2 mixture of boiled grain, bran, etc., fed to horses etc. 3 colloq. mashed potatoes. 4 mixture of malt and hot water used in brewing. 5 soft pulp made by crushing, mixing with water, etc. v. 1 crush (potatoes etc.) to a pulp. 2 diaL a infuse (tea). b (of tea) draw. L i masher n. [Old English]