Bronx Indian or Brooklyn Indian
A "Bronx Indian" or a "Brooklyn Indian" was a term for a Jew. The terms are not complimentary and are not used anymore. They were most frequently used in the 1940s during World War II.
(Historical Dictionary of American Slang)
Bronx Indian n. N.Y.C. BROOKLYN INDIAN.
1942 ATS. (American Thesaurus of Slang - ed.)
...
Brooklyn Indian n. N.Y.C. a Jew. - used disparagingly. Joc. Cf. BRONX INDIAN.
1967 West. Folklore XXVI 189: Brooklyn Indians - Jews...heard in service during World War II.
(Historical Dictionary of American Slang)
Bronx Indian n. N.Y.C. BROOKLYN INDIAN.
1942 ATS. (American Thesaurus of Slang - ed.)
...
Brooklyn Indian n. N.Y.C. a Jew. - used disparagingly. Joc. Cf. BRONX INDIAN.
1967 West. Folklore XXVI 189: Brooklyn Indians - Jews...heard in service during World War II.