party like it's 1999

From the Prince song called 1999 and released in 1982. The song uses the phrase in reference to a nuclear apocalypse predicted to occur in the year 2000, but it was later reinterpreted as meaning that the turn of the millennium calls for a particularly large celebration.

• "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!"
• "The European Union is not an organisation to do things by halves, particularly when it comes to a celebration. This time Europe will party like it's 1999. Or more precisely 1 May, 2004."
• "[…] I was deep in the streets with ole friends and new ones, drinking (as usual), spot hopping and partying like it was 1999."

• yolo
• as if there were no tomorrow
• like there is no tomorrow