drink vs hit it up

drink is a noun but hit it up is not a noun.

Word	Noun	Adjective	Verb	Adverb
drink	Yes	No	Yes	No
hit it up	No	No	Yes	No

As verbs, hit it up is a hyponym of drink; that is, hit it up is a word with a more specific, narrower meaning than drink:

Other hyponyms of drink include tank, port, claret, bar hop, pub-crawl, bib, tipple, inebriate, soak, souse, wine, carry, hold.

drink (noun)	hit it up (noun)
the act of drinking alcoholic beverages to excess
the act of swallowing
any liquid suitable for drinking
a single serving of a beverage
any large deep body of water

drink (verb)	hit it up (verb)
be fascinated or spell-bound by; pay close attention to	become drunk or drink excessively
take in liquids
consume alcohol
drink excessive amounts of alcohol; be an alcoholic
propose a toast to