the day when shit goes on sale for Christmas. It's a *crag*ing mosh pit. Like, 2 people died last year because everyone needs a Wii and other home electronics.
It's the day after Thanksgiving when everyone decides to go shopping, starting with waiting outside at 4AM so you can pay the same price you would get if you just shopped online. Traffic is horrible, you have to park miles away from the mall, and wait in ungodly long lines to checkout. I recommend you stay locked in your home until Christmas day.