Nightmind 

A mindset where people do things they normally wouldn’t do due to staying up late at night.

Friend 1: “Dear god, blue waffle?! When did I look that up?!”
Friend 2: “Your nightmind probably got curious last night.”

Nightmind by bbuddy25 June 14, 2022

Nightingale 

No nightingales

Listen do you hear that ?
I don’t hear anything

That’s the point….no nightingales

Blah blah

*every*

Nightingale by LlamaUrMother September 7, 2023

Nightwing 

The original Robin, also known as Dick Grayson.
Quite possibly the coolest part of the Batman everything.
Nightwing is a badass mofo with long black hair and ninja moves. Very shweet!

Dude 1: Dude! Batman is on! Let's watch!

Dude 2: Is it the one with Nightwing?!?

Dude 1:...No.

Dude 2: Well fuck that then!

Nightwing by Josh-o-matic December 16, 2008

Nightingale syndrome 

The Florence Nightingale effect is a situation where a caregiver develops romantic feelings for their patient. Many often misunderstand the term to mean the opposite; that is, a patient falling in love with the caregiver as a result of interpreting an amiable bedside manner as affection.

See Florence_Nightingale_effect on Wikipedia, often confused with Nightingale syndrome (which is something else entirely).

Nightingale syndrome by Walkman100 January 19, 2016

Nightman 

A man created by the wacky mind of Charlie day, is the arch nemesis to Dayman and is rumoured to be Charlie’s uncle Jack. Nightman is said to come to you in the night and pin you down and come inside you, one will be screaming a passionate shout during this act and it just involves two men like loving brothers

He is coming!
Who.... who is coming?
THE NIGHTMAN

Nightman by Tubby bilbo August 3, 2018

Nightingale Pasta 

A phrase that is used when more than one neighbors sexual activities can be heard at the same time, giving the impression that a nightingale is dying in boiling agony. The common response to this layer of awkwardness is to eat pasta.

I swear all my neighbors were going at it last night...so I had to bust out the old nightingale pasta cuz I don't have a girlfriend.

Nightingale Pasta by KosherBob January 4, 2021

Nightingale 

Beautiful woman that has eyes of a godess amazing singer, falls deep loves hard is family orientated , dosent have a bad bone in her a really amazing kisser , all nightingale's tend to be incredibly gorgeous with the most flawless skin , but watch out for her short wick temper Everybody needs a nightingale

Nightingales are keepers

Nightingale by Jane webb December 17, 2013