Green’s Dictionary of Slang

hooknose n.

also hookface, hooknosed gentry, hooknose Jew
[physiological stereotyping; also note Folb, Runnin’ Down Some Lines (1980): ‘Whites who display characteristics associated with what is seen as Jewish behavior or looks are often labeled as such. I heard a variety of non-Jewish people, such as Italians, Armenians, and Greeks, being called by these terms because they showed stereotypic Jewish features or they behaved in some manner associated with Jews’]

[mid-19C+] a derog. term for a Jew; also a derog. term of address.