Well that depends on the definition of racist, doesn't it? Let's see...
1. a belief or doctrine that inherent differences among the various human races determine cultural or individual achievement, usually involving the idea that one's own race is superior and has the right to rule others.
2. a policy, system of government, etc., based upon or fostering such a doctrine; discrimination.
3. hatred or intolerance of another race or other races.
Using Jew as a verb may be insensitive but it doesn't mean Jewish people are inferior as a whole, or deserving of subjugation. It doesn't mean every Jewish person conforms to the stereotype or that all Jews should be hated for an exaggerated stereotype either. It's just the kind of tasteless joke that Men from all cultures use to bond with one another by accusing a friend of sharing "unsavory" characteristics with a foreign entity.
It's an art form really, on a par with Yo Mama Jokes.
I bolded an important word here
Yea, I'll tell your mama jokes to my friends
I'll tell Jew jokes to my Heberw School classmates
My close non-Jewish friends can tell them to me
You used the word "Jew" as an insult (unless you like socialists, and even then its still a generalization)
yoni is not your friend
using "Jew" as an insult is still an insult, you are using yoni and my religion to put down other people, equating the religion with bad connotations.
it is an art form, and your art is on par with that of a 7th grade lunch room