I can't sleep now- I'll be useless all afternoon from nap hangover.
, 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.
Oh my god! Did you see that concert? It was totally f-in' viking!
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