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1.
the organization of hobos/bums that conspire to take your food, your money, and your left shoe when you dont give them change but have a pocket full of quarters,nickles, dimes,etc
the hobo mafia will come after you if you dont give them your change...
by zayl October 24, 2006
 
2.
An organization of the Cheatengine Foums that specializes in mass derepping and company picnics. The leader's name is "The Hobo" hence the organization's name, hobo mafia.
hobo mafia : "we will be a group of elite rep terrorists who will all save our rep, designate a target and then -rep them to -1 and we will also have company picnics."
by HoboMafiaCEF February 08, 2009