1 definition by tessdog22
1. verb used when referring to when someone is being shafted for going against unspoken rules, such as a guy code.
vince: if chris even thinks about dating megan im going to have to mafia his ass. He will be dead to me.
chris: vince straight up mafiaed me for talking to megan we haven't talked in years.
chris: vince straight up mafiaed me for talking to megan we haven't talked in years.
by tessdog22 June 1, 2010