In former times, these enclaves of Jewishness were called 'Ghettos', although the term ghetto is now more commonly associated with areas populated by lower-class African American communities.
A good example of a Little Israel would be the Sarcelles district in Paris, France or Kew Garden Hills, Queens, New York.
Synonyms: Little Tel Aviv, Little Jerusalem, Hymietown
Guy 2: In Little Israel, man -- so not only are they moist and flavourful, but damned if they aren't Kosher
Guy 1: Damned indeed!