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v. When an individual arrives at that time of the social event that s/he just has to go home. The party may not be over, but the party is over for you.

Derived from Cinderella's "the coach turns back into a pumpkin at the stroke of midnight."
"Is it 1 a.m. already? Let's go home; I'm about to pumpkinate."
by izzy wizzy May 19, 2009
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