imbiber
/ˈɪmbɪbər/Definitions
1. noun
one that drinks; a person or animal that imbibes a liquid, especially an intoxicating one
“The local pub is a popular spot for the city’s imbibers.”
2. verb
to drink (especially intoxicating liquor) in large quantities
“She had been imbibing heavily at the party and was not in a fit state to drive.”