partying like it's 1999

Verb

party like it's 1999 (third-person singular simple present parties like it's 1999, present participle partying like it's 1999, simple past and past participle partied like it was 1999 or partied like it's 1999)

1. (idiomatic, simile) To party intensely, particularly when reckless or pessimistic.
   • This past year the girls in Laughlin worked hard at protesting Chatham's prohibition and at getting a reputation for the best parties in town. They succeeded at living up to their theme — Party Like it's 1999!1983, “Laughlin Hall”, in Amita Chaudhary, editor, Cornerstone, Chatham College, page 117