The sluggishness one often feels after taking a nap when the body wants to stay asleep for the long haul but the afternoon's activities are calling. Combination of nap and hangover, obviously.
Feels how one might imagine feeling at the bottom of the ocean, under a pile of rocks, or waking up from a roofie
. The potential negative effect of a disco nap
Can usually be avoided by careful monitering of nap-length to no more than half an hour, or by getting enough sleep and needing no naps at all.
Miranda has plans to go out tonight, but has a napover and feels like a slug.