1 definition by DSing

To celebrate in a wild and crazy manner. Implies that you have nothing to else to do but give yourself up to your raw emotions. Originates from the 1982 hit "1999" by singer/songwriter/composer/performer Prince.
"They say 2000-0-0 party over, oops, out of time,
so tonight I'm gonna party like it's 1999"
by DSing September 14, 2005
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