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A person who kills three or more people at different times with a cooling off period in between.
Jeffrey Dahmer was a serial killer
by Squirrel Killer March 27, 2007
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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.
Serial Killers like me kill ass holes like you.
by Someone December 21, 2003
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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.
Raj is a serial killer! He be killin' em every time he gets on stage.
by Mikimonster April 09, 2015
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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.)
The cities in North America: Seattle, Washington, New Orleans, Louisiana; and Toronto, Ontario are often serial killer hotbeds and are renowned and claimed as serial killer capitals of the world. Be careful when you visit these cities.
by Charmouche June 01, 2018
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