dead of the night 

That time, around 3:30 AM, after most of the night owls have gone to bed but before most of the early birds get up. The greatest percentage of people are simultaneously asleep at this time.

I awoke from my dream in the dead of the night.

dead of the night by NetCast January 29, 2018

The Night Circus 

beautiful piece of literature that will give you all of the feels. Read it.

You: What is The Night Circus?
Friend: The circus arrives without warning.
You: what?
Friend: No announcements precede it...
You:...
Friend: It is simply there when yesterday it was not.

The Night Circus by Red Chiffon September 10, 2012

The Night Begins to Shine 

A magical song created by B.E.R., a joint band. Featured in TV show "Teen Titans Go". It really brings back the 80s.

Dude, did you listen to The Night Begins to Shine?

Seriously, The Night Begins to Shine is such a good song.

The Night Begins to Shine by koals August 24, 2017

The Night of Conky 

A night where your friend shows up at your house, gets all drunk, and starts talking like Conky from Trailer Park Boys. He/she might also whip out a miniature Conky puppet to add to the effect.

Rachelle: Ravvviiiinnneee.
Colin: Hey Rachelle, how much have you have to drink tonight?
Rachelle: I don't know, stuuupiiid.
Fannie: Somebody take that puppet away from her. It's really pissing me off.
Andrzej: It's The Night of Conky!

The Night of Conky by cokemidget August 14, 2009

Creature of the Night 

Someone who prefers to stay awake till late in the night, working hard on something, or just chilling.

These people are usually pretty carefree about society, and can sometimes be overwhelmed by large social gatherings.

Usually intelligent, creative and tireless.

Person 1: Did you see his Snapchat story? He was mapping the Andromeda galaxy at 4am.
Person 2: He's a Creature of the Night.

Creature of the Night by I Use Urban Dictionary? August 21, 2017

on the night 

when the time comes, or when the occasion arises.

when learning to be zombies in Shaun of The Dead, Dianna ask's Ed to do his zombie impression and he says "i'll do it on the night."

on the night by a-paz December 6, 2007

ladies of the night 

Prostitutes

Women who have sex for money at night are ladies of the night.

ladies of the night by kandygrl7 July 2, 2009