tipple

v. (-ling) 1 drink intoxicating liquor habitually. 2 drink (liquor) repeatedly in small amounts. n. Colloq. Alcoholic drink.  tippler n. [origin unknown]

v. i. To drink spirituous or strong liquors habitually; to indulge in the frequent and improper used of spirituous liquors; especially, to drink frequently in small quantities, but without absolute drunkeness.