noun
a loud, enthusiastic expression of enjoyment, excitement, or celebration
verb
to engage in lively and noisy festivities or celebrations
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The guests were encouraged to whoop it up and celebrate the success of the project.
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Let's whoop it up at the party tonight!
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We're gonna whoop it up at the concert, it's gonna be lit!
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After a long week of hard work, it was time to whoop it up and relax on the weekend.