1 definition by Loki777

Top Definition
The state of thinking only for yourself. For small degrees of megalomaniacy, see megalomaniac . A person suffering from extreme megalomaniacy will always put themselves first.
Sarah: Hey, Tom, do you wanna go to the dance?
Tom: What?! And embarrass myself? I don't think so...
*Sarah starts to walk away then comes back*
Sarah: Do you suffer from Extreme Megalomaniacy?
Tom: What does that mean? If you're saying I'm handsome, thank you.
*Sarah strangles Tom*
by Loki777 December 06, 2007

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