It means cool, gangsta, gangster, neat, in style, etc.

A.K.A. MHG.

1.Yo s0n, dem kickz b Mad Hot Gangsta.

TRANSLATION: Your shoes are way neato.

2.Y0 my skilz in halo 2 b of da chain, im likethe MHG in dat game. I pwn teh n00bz.

TRANSLATION:Im an expert in Halo 2, I am much better than the novices.
by Help1 March 9, 2006
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