slack day 

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.

slack day by Cream Waffer April 28, 2008

G-Slack Day 

When a event or large group gathering gets canceled due to the COVID-19 virus.

Hey are you going to Coachella this year?

Bro you didn’t hear? They pulled a G-Slack day.

G-Slack Day by G-Slack May 5, 2020

G-Slack Day 

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

Bro did you hear about G-Slack Day?

Who in the fuck is a G-Slack?

G-Slack Day by anonymous September 15, 2020

Hacky Sack Day 

The first sunday of the month shall be devoted to hacky sack.

April 3, 2005

It begins

Hacky Sack Day by Jeremy March 28, 2005

slick day

Using sick leave for an alternative purpose.

It's gonna be 70 degrees and sunny tomorrow. I'm totally gonna take a slick day.

slick day by cathmc March 14, 2007

pack-in-the-sack-day

On February 31, people pack in the sack all day

I packed in the sack with my boyfriend, last pack in the sack day.

pack-in-the-sack-day by Sally Jinkins April 3, 2004

pack-in-the-sack-day

Every February 31, Kurtis's family and friends pack in the sack all day.

Paul and Andy are going to tag team Kurtis's mom on Pack-in-the-sack-day.

pack-in-the-sack-day by bobbob7777 March 13, 2004