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The Saturday closest to St. Patrick's Day when it falls on a boring weekday. This may include a city parade where everyone drinks, followed by a night getting even more drunk.
Seamus: Dude, St. Pattie's Day is on a Tuesday this year! That sucks!

Connor: Yeah, but at least we can celebrate Keg Patrick's Day this Saturday!
by GladysRules46 March 15, 2009
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