Top Definition
i) (noun) a party full of attractive women.
'Due you coming?'
'Will their be any birds?'
'Mate, its a fuckin gash-fest!'
by ItalianStallion30 March 18, 2010
a party/social event full to the brim with premium gash

not being able to pull at a gashfest takes an impressive degree of retardation

also known as: a POON-A-PALOOZA
1: "man that party last night was an absolute gashfest!"
2: "i know man, so much hot poon! you got laid yeah?"
1: "err .. nah actually"
2: "how did you not?!?!?! .... are you actually a retard?"
by halz&rud May 26, 2009

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