Top Definition
The phenomenon that occurs on Sundays directly following a Catholic Church service. Generally police are involved to allow all of the church-goers to leave the church and back up other traffic in the process
Friend 1: Hey what took you so long to get here?
Friend 2: Sorry, I didn't realize it was Sunday and got caught in a major Catholic Jam
by GirlWhoCriedOw November 23, 2009
6 Words related to Catholic Jam

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