Definition of “Irish Exit” from urbandictionary.com:
More specifically, the irish exit refers to the departure from any event without telling any friends, associates or acquaintances that one is leaving. It is almost always the result of being very inebriated/intoxicated.
Definition of the “Derk Exit” from Helpfulsnowman.com:
Leaving an event after becoming extremely intoxicated, but first playing three dollars’ worth of Robotron, making a declaration about a road trip to be taken which will never be honored, vomiting on a sidewalk, and losing $18 in change. It is ALWAYS the result of being extremely intoxicated. And lonely.