Staying up for almost all night, usually to about 5:00am. A teenage (age 12- 14) form of an all nighter that is cut short, as to not be caught by your parents.
Geek1: What happened? You just logged off in the middle of the quest in the MMO!
Geek2: Sorry, but I was pulling an almost all nighter. If my parents saw me I'd be dead right now.