Top Definition
A persons or group of Persons who have caused or will cause destruction to a human, an animal, or any object.
1. Please Momma dont let the Nazis come and Babysit me tonight!
-O Little Jimmy be happy with the nazis, at least i didnt get an Arsonary to come tonight so shut up you queef.

2. Cameron Bemis

3. I have now just made Arsonary a real word
by Hello-kitty Bitch March 12, 2008

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