She's a big beer/wine/coffee 'drinker'. [=she drinks a lot of beer/wine/coffee]
Most of his friends are 'drinkers'.
He's a heavy/moderate 'drinker'.
(..) the cowboy hats and a buckle and... they just drink a lot of beer. - (man whistles) - See? There they are. See... And beer drinkers are really different people because they... something happens to their hearing. They go almost... Now, they drink a lot of beer and the beer does not go here, (..)1983 Bill Cosby: Himself