A situation when your car is running on nothing but fumes and prayer to get you to the cheapest gas station.
Kid 1: God, the other day my dad drove all the way to Costco on an empty tank just 'cause gas is cheaper.
Kid 2: Sounds like he pulled a hail mary tank.
Kid 2: Sounds like he pulled a hail mary tank.
by Runebirdie June 18, 2008