noun
a slang term used to describe a large, extravagant, or over-the-top event or party
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The annual music palooza drew in thousands of attendees from all over the country.
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I heard that the food palooza at the park is going to have all kinds of delicious treats.
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I can't wait for the shopping palooza this weekend - I'm going to score some great deals!
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The political debate turned into a media palooza with reporters swarming the candidates for comments.