Think for a second about the e-mail subject line you’ve seen that is the most evocative of American Judaism. I wouldn’t want to presume that all American Jews are Ashkenazim so let’s refine the search to Ashkenazi-American culture.
I just got an e-mail over a Jewish listserv with this title:

health question – pickled herring during pregnancy?

From topic, to phrasing, to foods it has to be in the running for the most American-Ashkenazi Subject Line, Ever. What would the other contenders be?
Also, does anyone have an evidence-based answer? I am sure the original e-mailer would be interested to know.