a person who has no willy, and usually is used to insult someone
oh no not deman!

oh you're such a deman, why'd u do that u fucking prick?
by Yourmum April 7, 2005
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When your manhood has been completely eroded away by life, wife ,kids,job ect.
by Rover Sinker June 12, 2015
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A nice person with perfect talent on animating, aesthetics, romance, or all of them. Mostly helpful and kind to other people during her lifetime.
Wait, is this project made by Demanation? No wonder it's so beautiful!
by MetaPlanet February 6, 2019
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