The act of releasing gas, farting, during sleep. sleep induced farting.
My girlfriend had a bad case of nocturnal flatulence lastnight. She kept me awake all night.
by Satbandit April 29, 2010
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Staying up so late over winter/spring/summer break that you are sleeping through almost the whole day.
Todd: Dude, I've been texting you all day, why didn't you answer?

Mike: Sorry bro I've been so borderline nocturnal lately that I couldn't check my phone until now.
by blerghhhhhhh January 7, 2013
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When you sleep for 1/4 of the day, then are awake for another 1/4 of the day, then sleep again for 1/4 of the day, and then awake for the rest of the 1/4 of the day.
Example of neo nocturnal:
7pm-4am: awake
4am-7am- sleep
7am-3pm: awake
3pm-7pm: sleep
by stay single 4 life April 7, 2021
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A term used for the wet dreams of the 45th POTUS over the insane amount of money he’s making while in office.
Yeah, I’m guilty of experiencing nocturnal commissions alright, although it’s less and less as I get older!
by Dr Bunnygirl July 1, 2020
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When your mind is constantly racing late at night but you're extremely low on energy.
I'm tired as fuck but I can't stop thinking. Fuck Nocturnal Overdrive.
by RariFoag Productions May 13, 2019
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When you urinate in someone's mouth when they are sleeping.
I was so tired of hearing her snoring that I thought that a little nocturnal liquidation would get her quiet.
by Almighty Money Folk July 4, 2016
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