To return to a party with the intention of sleeping over after having returned to one's own home, often far away (like 20 miles, or over an hour in travel time if there's traffic) to gather overnight and next-day essentials.
Billy: Clarissa! Don't go home so early. Get plastered with us tonight, and then go home tomorrow.
Clarissa: Billy, I can't! We have class tomorrow and I don't have any clothes or make-up.
Billy: Oh yeah I forgot about fuckin' class. Well, re-come out! If you leave now you can be back in a couple hours and then we can get schwasted together!