Top Definition
Feeling tired and like you should take a nap
I was up studying all night and i just took that hard test. I am feeling napacious.
by OCNAPS May 15, 2011
1 more definition
Constituting or characterizing greatness or an excess of awesomeness. See synonyms at bitchin.
He was such a napacious volleyball player that we had to recruit him immediately.
by The General December 06, 2004

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