cookie + party = female masturbation marathon.

i believe "the sarah silverman show" reference to "cookie party" obscures its slang interpretation for comedic value.

my mom knocked on the bathroom door while i was in the middle of a cookie party

or

the only thing i wanted to do friday night was get lit and have a cookie party
by hammond eggs February 10, 2007
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A cookie party is a normally feminine activity in which cookies/cakes/brownies are made and movies are watched at my house. For some ppl who do this at their own house, they sometimes like to put things in the mix besides whats in the ingredient list.
Let's invite the neighborhood girls and have a Cookie Party!
by roadsideflowers July 4, 2009
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a get-together amongst females only, in which each female brings a batch of cookies and watches raunchy porn, while making fun of the terrible quality of the porn
While at the porn and cookie party, Jennifer commented on the porn star's dirty hightops and farmer's tan.
by littlejen June 23, 2009
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Code for drinking. Commonly used when a school club wants to hold a party without getting by university officials.
The ski and snowboard club will be having a "Milk and Cookie Party" on Saturday
by Damnifiknow November 10, 2010
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