1 definition by otunstu

Top Definition
A tradition in notorious student party town Dunedin, New Zealand. Involves dressing up in a group with a common theme, drinking very early in the morning (and continuing all day) and making your drunken way to the Cook bar for a day full of drinking.

Is now banned from Dunedin thanks to the university opposing the liquor renewal of the Cook.
Guy 1: Bro, what you going to cookathon as?
Guy 2: Our flats going as terrorists. What about you?
by otunstu September 16, 2009
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