Slack day comes every April 27th. It is a day in which managers get to sit on their asses all day with no repercussions from ownership. Manager typically gets his jollys as he watches his work get done by someone being paid half as much,also see philing it
Owner:What are you doing today?
Manager:Nothing it's slack day!
Owner:Well I'm gonna go crack the whip on those bitches.
Manager:Nothing it's slack day!
Owner:Well I'm gonna go crack the whip on those bitches.
by Cream Waffer April 28, 2008
by G-Slack May 05, 2020
An event made by a kid who most likely did drugs in high school and tried to become a rapper and make his own holiday