When someone stole something of yours, and you arefully aware, and okay with it because they are "jewish" (note, they do not actually have to be jewish)
My quarterfell on the ground and my jewish friend picked it up, so I just let him jewnap it.
When a jew freaks out about you asking them for spare change to cover a purchase.
After I asked Mr. Goldstein for quarter to cover my lunch, he went on a jewnado, ranting and raving about how I should be fiscally responsible for myself.