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to make a lot of ruckus while doing something alone. having way too much fun with yourself. while this term is often dirty and implies masturbation, it can involve anything- from playing a drinking game alone to a one-man game of Dance Dance Revolution.
neighbour #1: "what the hellis that noise next door? is larry having a party."

neighbour #2: "more like a party for one."
by Partier of One October 28, 2008
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