Yidlock 

A traffic jam that occurs just prior to a Jewish holiday.

We were late for the Passover Seder because we got caught in yidlock on the 405.

Yidlock by Moishe Tannenbaum September 1, 2012

yidlock 

When your get stuck in stand still traffic because there are too many jews on the road

Everytime I drive through Boropark, I get caught in Yidlock

yidlock by Marco P February 27, 2005

yidlock 

when a group of jews crowd around the food at a family or social gathering, making it hard to get through. See gridlock

Wow, Rachel, these bagels are really causing yidlock here

yidlock by sayy what?! December 8, 2007