NaNoEdMo - National Novel Editing Month takes place every March. You have 31 days to edit a novel (usually a NaNoWriMo or "nano" novel) for at least 50 hours total. A great contest for writers. Also referred to as "edmo".
"Are you doing NaNoEdMo?"
"Yeah, I'm falling really behind. I've only clocked in 10 hours so far!"