Pumpernickel is Jewish and white bread is very goyish.

Lenny Bruce had a famous routine about what is "Jewish" and what was "Goyish". In part, it went like this

Dig, I'm Jewish. Count Basie's Jewish. Ray Charles is Jewish. Eddie Cantor's goyish. B'nai Brith is goyish; Hadassah, Jewish. Marine corp – heavy goyim, dangerous. Koolaid is goyish. All Drake's Cakes are goyish. Pumpernickel is Jewish, and, as you know, white bread is very goyish. Instant potatoes - goyish. Black cherry soda's very Jewish. Macaroons are very Jewish - very Jewish cake. Fruit salad is Jewish. Lime jello is goyish. Lime soda is very goyish. Trailer parks are so goyish that Jews won't go near them. All Italians are Jewish. Greeks are goyish - bad sauce.

If the routine were milk it would be way past the expiration date. It's very dated.

For some Jews culture is a dirty word, at least as pertains to Jews. However it is evident that Jewish culture or cultures exist. What would you say is Jewish and what is goyish?