A nap that unintentionally goes on for several extra hours.
Dude1: im going for a nap, Dude2: aight cya in an hour so. Dude3: hes been gone like 6 hrs. Dude1: yeh so im back now... i kinda slept for a few extra hours :S Dude2: man! thats an Evannap
by Kaldra January 18, 2009
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