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when another person from a different crew, area, or hood looks at you like he's going to do something.
"Ay did you see James mad doggin me earlier? Im bout to fuck this nigga up!"
by nigga gabe July 31, 2006
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To stare down someone in an aggressive manner in the hopes of
starting a fight.

Yo that fool was mad doggin' me but I straight showed him piece and he bounced out
by Thanisha November 16, 2005
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A nasty, often firestarting, look at an individual that is typically not cared for. The individual is disliked in most cases.
Dat trick wuz maddoggin me cuz I didnt drill her last nite
by co'caine April 03, 2007
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To do everything you possibly can to support your favorite character in a Saimoe Tournament. Named after a former member of animesuki who, for the entire year before the 2008 Japan Saimoe Tournament, went to dozens of anime forums and got as much support as he could for Kagami and Tsukasa Hiiragi from the anime "Lucky Star". During the 2008 Japan Saimoe Tournament Kagami and Tsukasa Dominated all their competitors and finished 1st and 2nd.
Fred was Mad Doggin for that anime character last year.
by Mad_Dog7 August 17, 2010
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