Stupid phrase that I'm sure will catch on because the TV and print media that propagates such things is brainless: Cyber Monday. "The Monday after the U.S. Thanksgiving holiday, when online retailers reportedly experience a surge in purchases" because everyone is back at their speedy internet connections (sans family) at work.
Update: "Cyber Monday" was created by shop.org, an organization of online retailers, as a marketing promotion. It's only the 12th biggest online shopping day of the year. (thx randy and minuk)