2 definitions by iKingston

Top Definition
A person who is crazy, insane, or generally dangerous
That Mayniac is going to kill you!!
by iKingston April 27, 2011
1. A person who exhibits the behaviour known as mania
2. A classification of serial killer
3. Someone who is dangerous and born in the month of May.
4. A very good Call of Duty player for the Xbox360.
There is a dangerous Mayniac loose on the streets.
by iKingston April 27, 2011

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