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2.
The special day of the week in which the Shaturday Night Bandits (SNB's) leave unsuspecting victims bags of horseshat.
Yes! Today is finally Shaturday! Let's get that bitch from English class back for making fun of us!
by SNB 1-8 December 09, 2008
 
1.
A Saturday that sucked balls.
Guy 1: Dude last Saturday sucked ass tits

Guy 2: I know it was such a Shaturday
by Sexual Rowboat April 14, 2009