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Verb: whoop it up
Usage: informal
  1. Celebrate noisily, often indulging in drinking; engage in uproarious festivities
    "Let's whoop it up--the boss is gone!";
    - revel, racket, make whoopee [informal], make merry, make happy, jollify, wassail [archaic]

Derived forms: whooping it up, whooped it up, whoops it up

Type of: celebrate, fete, fĂȘte