Top Definition
When one sleeps for excessive hours, the following day is consumed by this. Involves feeling crappy, overall laziness, and messy hair. Similar to hangover, but instead of too much alcohol, it is too much sleep.
Dude, is she hungover? She looks like crap.

No man, she slept too much last night. She's got the sleep rot.
by ApocolypsePLZ October 18, 2010
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