, unable-to-open-one's-eyes feeling that one can experience after a midday nap.
I fell asleep on accident, and not only did I lose the hour I slept for, but I lost another hour or two to the nap hangover.
The hangover-like feeling one experiences when waking up from a mid-day nap. (Most likely won't experience nap hangover if nap does not exceed 30 minutes).
"Yo that nap hangover is really messin you up, you shouldnt'a taken that nap"
I can't sleep now- I'll be useless all afternoon from nap hangover.
The fuzzy, drowsy, and nauseous feeling that follows a long napping period, usually lasting 15-30 minutes.
Kyle: Why does Danny seem so tiresome?
Joe: He's still recuperating from his nap hangover, Mr. Patterson's lecture on electromagnetism put him to sleep.
The headache, numbness, and discomfort that is experienced by a person when a power nap turned into a 4-hour nap marathon. It's when a 30-minute nap turns into a 4-hour nap that is not quite long enough to qualify for a true sleeping session.
It's 7PM on a Friday night. You decide to take a 30 minute nap, so that you'll have more energy for the weekend's events. 4 hours later, the intended 30 minute power nap turned into a 4-hour nap marathon.
Eddie: What time is?
Jane: It's 11PM
Eddie: Oh man! I was supposed to wake up before 8PM to meet up with the guys, but now I have this crazy headache.
Jane: You are experiencing a naphangover.