carouse vs make whoopee

carouse is a noun but make whoopee is not a noun.

Word	Noun	Adjective	Verb	Adverb
carouse	Yes	No	Yes	No
make whoopee	No	No	Yes	No

As verbs, make whoopee is a hypernym of carouse; that is, make whoopee is a word with a broader meaning than carouse:

carouse: engage in boisterous, drunken merrymaking
make whoopee: celebrate noisily, often indulging in drinking; engage in uproarious festivities

Other hypernyms of carouse include jollify, make happy, make merry, racket, revel, wassail, whoop it up.

carouse (noun)	make whoopee (noun)
revelry in drinking; a merry drinking party

carouse (verb)	make whoopee (verb)
engage in boisterous, drunken merrymaking	celebrate noisily, often indulging in drinking; engage in uproarious festivities