Top definition
The one day, usually every month or so, where you finally crack, and update Adobe, Itunes, Steam, and a bunch of other crap all day. Basically renders your computer useless if you are using anything but solitaire.
God dammit! iTunes wants me too update! And Steam too! I guess it is update day again.
by Captain Jack Mehoff April 13, 2013
Get the mug
Get a Update Day mug for your guy Abdul.