beer drinker vs juicer

beer drinker and juicer both are nouns.

Word	Noun	Adjective	Verb	Adverb
beer drinker	Yes	No	No	No
juicer	Yes	No	No	No

As nouns, juicer is a hypernym of beer drinker; that is, juicer is a word with a broader meaning than beer drinker:

Other hypernyms of beer drinker include drinker, imbiber, toper.

beer drinker (noun)	juicer (noun)
someone whose favorite drink is beer or ale	a squeezer with a conical ridged center that is used for squeezing juice from citrus fruit
	a person who drinks alcoholic beverages (especially to excess)