make merry vs whoop it up

make merry and whoop it up both are verbs.

Word	Noun	Adjective	Verb	Adverb
make merry	No	No	Yes	No
whoop it up	No	No	Yes	No

As verbs, make merry and whoop it up are synonyms defined as:

make merry and whoop it up: celebrate noisily, often indulging in drinking; engage in uproarious festivities

Other synonyms of make merry include jollify, make happy, make whoopee, racket, revel, wassail.

make merry (verb)	whoop it up (verb)
celebrate noisily, often indulging in drinking; engage in uproarious festivities	celebrate noisily, often indulging in drinking; engage in uproarious festivities