how do you get a jewish girl 's number? you roll up her sleeve
Is this your way of making fun of Jewish folks?
What are you even talking about? I only tried to give a practical tip. Those numbers need to be rubbed on the skin in order to be seen properly, do this and they will come to you.
Some jokes are just too harmful and insensitive to tell, like ones regarding the holocaust. The Jewish struggled so hard and went through many atrocities, it is hurtful to them to just have jokes about it all. Sometimes it may be best to just be somber about it and respect what hardships they've been through.