A person who kills three or more people at different times with a cooling off period in between.

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.

Some one who hates cereal

A human being, usually an adult white male in his late twenties, who has killed four or more individuals in seperate incidents with a cooling off period in between.

Serial Killers come in several types. There are Hedonistic serial killers, who enjoy causing pain and suffering.

Visionary killers are often psychotic, and beleive they are acting on orders from a higher entity.

If left unchecked, a serial killer may degenerate into a spree killer or mass-murderer, which are entierly different things.

A person who commits a series of murders to a number of people. Many of them are very bright and intelligent. Usually, it is poor upbringing and confusion; that leads them to do these things. (note: I am not dignifying or condoning them.)

1. Noun version of the perpetual 'be killing'
2. Someone who continuously 'kills' (does beyond well) in their respective field
3. The highest level of perpetual, premeditated awesomeness.

Slang term for chronic masturbator.