Effects of sleep deprivation resulting in the person being slightly confused and have slower reaction time, somewhat similar to the effects of marijuana.
I haven't slept in 2 days. I'm rockin' a major sleep high right now.
If you say someone has a high schooler sleep schedule, you are calling their sleep schedule batshit insane and non-existent. Whoever's a victim of it sleeps anywhere between 2-4 hours on average. Very common with druggies, unemployed people, and people who work overnight shifts.
Person: "It's 2am but I can't fall back asleep. Guess I'll just start my day"
Roommate: "You have a high schooler sleep schedule, don't you have anything better to do?"