nightsoil 

human manure, shit, crap

Ending a century-old tradition, nightsoil collectors have cleared the last lavatory in Beijing by hand, another milestone in what has been dubbed the toilet revolution sweeping China

nightsoil by noguide June 15, 2006

nightsuit 

another word for pajamas; jammies

Commonly used in the UK or former British Colonies

Bob, get into your nightsuit! It is time for bed.

nightsuit by singsingsing November 8, 2009

NightShower 

The act of showering at night, an activity that provides several advantages over its far more common counterpart, the MorningShower, including but not limited to:

(1) The feeling of going to bed squeaky clean

(2) The ability of being able to sleep in as long as possible in the morning because one does not have to deal with showering in their morning routine

(3) Less frequent need to launder sheets due to decreased filth accumulation

(4) The ability to end one's day in quiet reflection with a hot relaxing shower

(5) Communal showers are less crowded at night

MorningShowerer: "Dude, I gotta get up at 9:00am tomorrow."

NightShowerer: "Sucks to be you, man. I NightShower. My alarm is set for 9:15am."

NightShowerer: "Alright, lets blow this popsicle stand. I gotta go NightShower."

NightShower by NightShowerer7 October 18, 2012

nightpoop 

A poop that occurs only when you'd rather be sleeping.

Ugh, that buffalo chicken should have been refrigerated. Now I'm going to be up all night with the nightpoops!

nightpoop by missbit August 25, 2013

Nightsplitting 

The act of planning two or more events in one night, including parties, social gatherings, and dates.

This term was first used in the book The Manual by Steve Santagati in reference to scheduling multiple events, typically dates, in one night in the anticipation that one event is lame, rendering the alternate engagement a way to exit without being socially stranded for the night.

Gina opted for nightsplitting when she got asked out by both John and Kevin for Friday night, rather than commit solely to either one.

Nightsplitting by Blackwidow83 July 12, 2009

Nightspitter 

a group of delinquents who roam the night listening to loud bass music, attribute to the culture of living life to the fullest.

"i was hanging at this libary one day and in come a nightspitter ruining my study session"

Nightspitter by Leroy the Dangerdog August 17, 2011

Nightstorm 

A nightmare and wet dream in equal measure. When you have scary hot sex during your dream you ejaculate creating 'nightstorm'.

I had a nightstorm last night, it was epic.

Nightstorm by thisismyudpseudonym December 7, 2011