Top definition
Any day when it has been decided that good times will be had, most likely involving some form of intoxication.
In order for a day to properly be referred to as Slursday, the customary Slursday declaration must be made, as such;
"Happy Slursday!"
From then on, said day will be remembered as Slursday, and good times will be had by all.
"Ayyo, we bout to go pop some bottles, and have ourselves a Happy Slursday!"
by The Big J-O April 01, 2009
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