Black Friday marks the official start to the holiday shopping season. I believe the phrase refers to the hope that a profitable Thanksgiving weekend will put them 'in the black' (make them...
Stores are considered in the Black when they have a profit. In the red if not. So black Friday means lots of stores making money, and hopefully, lots of people also getting good deals. It is said to...
It is a financial term. When businesses are failing and losing money they are in the "red," but thanks to all the Thanksgiving sales, most businesses make a profit thus putting them in the "black."