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1. The highest level of craziness.

2. An uncontrolablly insane person. Things they do/say are beyond any comprehension.
Lisa loves Josh like a psychomaniac.
by asil June 10, 2007
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Jun 20 Word of the Day
Marginalized Orientations, Gender identities, And Intersex. it’s meant to be an all inclusive umbrella term for asexuals, homosexuals, multisexuals, trans people, and intersex people. Alternative to LGBTQIAP+
Alternative to MOGII, easier to pronounce.
The MOGAI community in my city is very friendly.
by sebasty September 04, 2014
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2
characterized by excessively neurotic and psychopathic behavior. Symptoms often include random bouts of yelling at random passersby, violent drunken outbursts, and splitting headaches that leave their victim bedridden for days or even weeks at a time.
Damn that psychomaniac Mike Gilson has huge lat muscles. Are those things bat wings or what?
by Daniel P. Murphy May 09, 2008
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