Top definition
A shitshow hosted by the summer students annually in which everyone DIDDLES all night together while dancing.
Bob: "Are you going to diddlefest?"
Jack: "What's diddllefest?"
Bob: "Oh it's just a shitshow where everyone gets hammered and diddles eachother while dancing."
Jack: "I'll be there!"
by ShibbyDorp August 11, 2010
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