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1. A super powered weapon used in the Half-Life 2 modification Garry's Mod multilayer. Normally restricted to admin or super admins in the ASSmod menu.
Random guy: Fucking admin abuse, look at him, using the admin cannon. He killed me four times now!

Admin: Well I wouldn't have to use the admin cannon if you would stop fucking spawn killing! You goddamn bastardslapping hypocrite!
by Zim1450 April 18, 2009
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