Contrary to what other posters think, this is not necessarily anti-semitic. Terms which have ethnic origins have gone into the language and lost their original connection with a group. Other examples are to gyp someone (Gypsies) or to welsh on a debt (people from Wales).
UN: Gaza could be 'uninhabitable' by 2020 if trends continue (AP)
from the article: Oklahoma lawmaker apologizes for 'Jew down’ remark