1 definition by Destroyyoutoo

Top Definition
Napping far longer than originally intended. Due to faulty alarm clocks, massive sleep deprivation, or intense drinking the night before.
I was going to do my homework, but my alarm clock didn't go off and I overnapped.

The hell?? My test started a half hour ago, I overnapped again!

Jesse was late to class again; he's a pretty consistent overnapper.
by Destroyyoutoo June 21, 2009

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