Can be used as an insulting term for a person who is 1) stingy, 2) scheming, 3) fanatical, or 4) insists on using past injustices to justify special treatment.
In also the term that refers to a proud and noble group of people with rich traditions.
1) Quit being such a jew and spring a few bucks on your girlfriend
2) Shylock was such a Jew
3) You're getting really Jewish about this new cause of yours
4) Quit being such a jew and stop expecting us to be nice to you because your girlfriend broke up with you 2 months ago