1 definition by TheTruthAboutEverything

Top Definition
A congregation of lonely, overweight girls, in which said girls get excessively intoxicated, cry about being fat and then consume excessive amounts of meat-lovers pizza, only to end up drunk-dialling men who are way out of their leagues for the shameful, unprotected sex that they seldom receive. A fat girl party often makes its way into a night club or bar, in hopes of achieving latter goals; these hopes often go unfulfilled – hence the need for more fat girl parties.
Eric: I went to a party on Friday night
Zach: Sweet, how was it?
Eric: Unfortunately, it was a fat girl party
Zach: Sorry to hear
by TheTruthAboutEverything November 07, 2009

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