Top Definition
The temporary gastroenterological condition of producing green stool, often occurring the day after drinking vast amounts of green beer on St. Patrick's day.
Those green-colored Christmas treats gave me a terrific case of the 3/18s.
#green #beer #stool #poop #st. patrick's day #shit
by Shamrock McShardy January 11, 2008
6 Words related to The 3/18s
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