Top Definition
DBM is an elite group comprised mainly of border town Police, originated in San Luis Arizona. The original two founding fathers were SLPD officers who were tasked with bringing down the big brown machine and stnading up for truth, justice, and the American way. DBM has grown and is currently moving across the state of Arizona. The moniker Diablo Blanco was bestowed upon two white Police Officers in San Luis buy local brown scum. DBM was once known briefely as BTP (Border Town Placas). DBM is in no way a white supremist group, nor do they hold the same beliefs and values as a racist group. They hate all non law enforcers the same.
If its brown and north bound Diablo Blanco Mafia (DBM) will take 'em down.
by Bubba Cop August 07, 2008

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