by Pbateman00 January 7, 2022

A tradition seen in New Zealand high schools where at the end of the year, students strip down to their underwear and run across their school grounds (or another school)
Person 1 - "Did you hear? Steve went to the grundy run yesterday!"
Person 2 - "No shit Sherlock, like two thirds of the school went."
Person 2 - "No shit Sherlock, like two thirds of the school went."
by jencii May 4, 2020

by Tim February 6, 2004

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by grundybitches January 23, 2011
