This version of "Hall Pass" does not refer to being a student and school days gone-by. In this version it refers to the permission given to go out with the guys (instead of fulfilling either girlfriend or wife duties / obligations / quality time / etc). The Hall Pass can come in half-day, full-day or even hourly increments. It is something to be prized, cherished and used judiciously for it is not an easy thing to obtain. It can only be obtained by verbal (or written) consent from said girlfriend or wife.
Mike E. Me told the guys he had gotten a hall pass for the opening Friday in March for the NCAA tourney. He was quite happy cause he had been planning this for sometime and his wife finally approved and granted him the pass (a full day one to boot!)
Craig called up the gang and sadly informed them that he would not be joining them at the race-track this coming Saturday. He couldn't get the hall pass, not even for a few hours.