Yesternight 

Last Night.
Yesterday Night.

Dude, Mark got so shitfaced yesternight, I think he went home with that gay guy James.

Yesternight by ZACH BAMF June 23, 2008

yesternight 

Yesterday night.

So, what happened yesternight, anyway?

yesternight by Bobert June 25, 2004

YesterNight 

YesterNight, because yesterday is only for 12 hours, then it is night..

“Do you remember when we went to bed YesterNight?”

YesterNight by Bill Knight April 10, 2021

Yesternight 

on the night before today’s night.

John: where were you last night?

Luke: yesternight?

John: yes
Luke: Yesternight I was at home…

Yesternight by poopiedookie3000 February 21, 2022

yesternight 

yesterday night

Mike and Katie fucked yesternight.

yesternight by asscrunchinglatino69 January 5, 2017

Yesternight 

The night before this night

Yesternight was the worst day of my life.

Yesternight by frabrizio April 7, 2017

Yesternight 

The 'last night' of yesterday.

Two nights ago.

The night before last.

Taylor: "The music video was due yesterday by noon; did you complete it in on time?"
Alex: "Yes, barely - I finished editing it yesternight."

or

Audrey: "When was your basketball game?"
Ella: "It was yesternight."

or

Miguel: "Did you see the movie yesternight."
Luke: "Of course, that was opening night."

Yesternight by GrannyJea December 3, 2017