M. Night Groan 

The collective groan that occurs when writer/director M. Night Shyamalan's name appears in the trailer for a movie.

An M. Night Groan erupted when the audience saw that Devil was "from the mind of M. Night Shyamalan."

M. Night Groan by Night Hater September 23, 2010

One Night Stand 

The dirtiest form of pointless sex.
A guy or a girl meets someone at some place (usually dance club)
and decides to have sex (only one time) with
that person without getting into a relationship.

The next day you leave without saying anything and
hoping that you didn't get any STDs...

Speaking of STDs,it's the easiest way to get STDs from
unknown sex partners, have fun!

People consider girls who had One Night Stands as whores.

Guy A: " Did you hear that? Jannete had already 5 One Night Stands!!"
Guy B:" Really? What a slut!"
Guy A:"Wonder how she feels after getting banged and thrown away like trash!"

One Night Stand by Bari January 29, 2006

black night 

A night of particularly severe drug or alcohol abuse accompanied by suicidal or self-destructive feelings in order to black out and forget about problems with a significant other or a break-up
Popularized by the song of the same name by Time Again.

George's girlfriend broke up with him this morning and he started drinking at 2. It's going to be a black night for him.

black night by K_Dogg March 15, 2007

Gentleman of the night 

Dom - a man who has a one night sexual encounter with a woman but shows no disrespect. His beliefs are that every woman should be treated like a lady if only for one night. Man who is charming and groomed to be an above average lover, he see's it as his duty to service, satisfy and please any woman's sexual desires, yet never kisses and tells.

I am not a man-whore I am a gentleman of the night..( said in a mysterious tone)

Gentleman of the night by Queen of hearts ❤️ January 19, 2016

Cinderella night 

A night when you have to be home by midnight, or thereabouts.

Josie: Going to Tim's party tonight?
Dave: Yeah, but I have work in the morning, so it'll be a Cinderella night for me.

Cinderella night by louisamaree January 24, 2011

Saturday Night Lever 

The erection which surfaces during a session on the dancefloor at the local discoteque.

It was clear for everyone at the dance-off to see that Tony Manero really had a Saturday Night Lever.

Saturday Night Lever by The Wheelchair Detective August 22, 2006

freedom night 

A night after breaking up with a significant other involving alcohol and random hook-ups. A celebration of being free.

After that bastard, I needed a freedom night.

freedom night by Haley N March 26, 2008