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1.
Normally a girlfriend of a married mobster.
"Where is Tony today?"
"He is with his goomar."
"That son of a bitch!"
by Charles Green June 19, 2005
 
2.
A girlfriend on the side, for a married mafia figure.
Lil' Petey: Hey how's Maria
Johnny Boy's Wife: Who?
Johnny Boy: Petey why you-a mentioning my goomar for
by liquidheat September 03, 2005