A more correct term for sleep over. The word 'sleepover' is misleading as it implies that sleeping will occur. However, this is simply not the case. The point of a sleepover is to stay up as late as possible in order to maximise party time. Thus, in all actuality the event termed 'sleep over' is more like an 'awake over'.
LO: Dude you havin' an awake over Friday night?
Me: Yup, we gotta load up on energy drinks. Anyone falls asleep and they get toothpaste in their hair.