I just did a quick google on it to find you "something" - apparently according to the Urban
Dictionary it has also been used as a slur against Jewish people. I don't have any facts to back this up, I merely know it because my family is Sicilian and...well..it is just known.
http://www.urbandictionary.com/defin...&defid=5608603
EDIT: this one might be more convincing to those who are not aware. The site doesn't look all that great, but the fact that this even pops up in a google search should back me up here.
http://www.rsdb.org/search/goomba
