crank it out day 

Crank it out day is universally takes place on Thursday of each week. It is when you tell everyone at work that you are really going to "Crank Out the Work" because you have failed to do anything meaningful or constructive during the week. This phrase was originally coined by Jack Wagon.

Don't forget that tomorrow is "Crank it out day"

crank it out day by MaskedCrapper December 4, 2013