imbiber
n 1: a person who drinks alcoholic beverages (especially to
excess) [syn: {drinker}, {imbiber}, {toper}, {juicer}]
[ant: {abstainer}, {abstinent}, {nondrinker}]
Imbiber \Im*bib"er\, n.
One who, or that which, imbibes.
[1913 Webster]