whoop it up

1.  Also, make whoopee. Celebrate noisily, as in After exams they decided to whoop it up at their apartment, or Down in the basement the residents were making whoopee. The variant may be dying out. [Slang; late 1800s]
2.  Arouse enthusiasm, especially politically, as in The volunteers' job is to whoop it up for the candidate. [Slang; late 1800s]

The verb has one meaning:

Meaning #1: celebrate noisily, often indulging in drinking; engage in uproarious festivities
  Synonyms: revel, racket, make whoopie, make merry, make happy, jollify, wassail