The Irish fire drill is an alternate performance of the Chinese fire drill, in which one member of the traveling party exits the vehicle (while stopped at a light or in traffic), urinates, and then returns to the vehicle.
Connor: Come on guys, I really have to pee.
Sully: We're already late, just perform an Irish fire drill.
Connor: *leaves car, urinates on road shoulder, returns to car*
When we were hanging out at O'Brian's the other night and Ryan McMurphy was just standing there, quietly drinking his Guinness, I should have known he was about to pull an Irish Fire Drill.
Similar to a chinese fire drill. However, instead of waiting to get to a stoplight, participants exit the car while it is still moving. Can be performed with multiple cars and also with multiple cars where only the drivers switch. This manuever is usually preceded by several pints of guinness.
Similar to a Chinese Firedrill, but the participants run around the outside of a pub when the drill is called. The participants must then finish the remainder of their drinks once a lap is completed. Bonus points for stealing homeless people's belongings and not vomiting.
While driving to Savannah for St. Paddy's, the driver commanded an Irish Fire Drill while in standstill traffic. The onlookers applauded as the passengers performed a perfect Irish jig.