1. a list of banned or undesirable people

2. to put someone on a list of banned or undesirable people

1. Blue Monday is the most depressing day of the year, calculated by Dr. Cliff Arnall, a researcher at the University of Cardiff's Center for Lifelong Learning.
Factors used to calculate the date included weather conditions, debt level, time since Christmas, time since failing our New Year's resolutions, low motivation and feeling the need to take action.

In 2005 the date was calculated as January 24th, in 2006 it was January 23rd, and in 2007 it was January 22nd.

2. A song by the hard rock band Orgy from their album Candy Ass.

A list of individuals that are to be punished or killed.

To be denied services/participation from certain activities. Usually caused by disagreeable acts against a person, government, or something stupid you did.

A list of all the bitches you hate and avoid

A list of people that are untrustworthy; deserving of suspicion.

A list of disabled or suspicious serial numbers/program keys a manufacturer of a company makes to fight internet piracy.