What is Jewish Phonecall?
1.
The act of dialling a number, allowing it to ring for just long enough for the person to get their phone in their hand, and then hanging up, forcing them to have to call you back and spend their own money/credit on the call.
"Yeah if you want me, just give me a Jewish phonecall and I'll get you back."
"All Josh ever does is Jewish phonecall."
See