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1.
A member of the Jewish Mafia. Its predecessor, the common word Goomba, means one of Italian descent, and most likely is employed in some sort of "family" business.
"Since Larry didn't pay his rent on time, Barry Goldstein and his Jewmba posse came after him, threatening to charge further late fees if his rent check continued to be tardy."
by Samkharvey July 27, 2006
 
2.
A robotic vacuum device thats only purpose is to collect spare change off the floor and under furniture.
Oh my backs killing me and I cant reach the floor.....time to call in the jewmba.
by TheByStander August 22, 2011