Night High 

The physical and/or mental state in the very late hours where you are tired and not in control or just not caring about what you say or do. Easily avoided by going to sleep or drinking excess amounts of high caffine products.

Last night John was speaking nonsense about some magic unicorn steal his lucky charms??!

Oh he musta had a night high...he shouldnt stay up so late.

Night High by SHADY225 June 2, 2009

Night High 

To be so tired that it would seem to others that you are, in a sense, high. Most commonly happens late at night, and symptoms include random bursts of laughter and well, other stuff people do when there high.

Jacob-hehehehe look at that door, its so, white and beautiful.
John-ya jacob, u a little night high or what?

Night High by JakeC January 2, 2009

Night high 

When your and tired and it's late and you think everything and everyone is funny no matter how stupid it is.

Ps

We are night high right nowwwwwwwww

2 friends sit in a room together while chatting at 4 am. They are night high

*Stares at Euan*
*Stares at Lana*

In sync

"Woahhhhhhhhhhh were night high hhhhhhhhh"

Night high by TodgerDodger420 August 13, 2019

Night High 

A certain time of night when a person becomes so tired that they begin to show symptoms of a person on drugs.

Jessi, it's a little early for you to be having a night high!

Bro you're night high is kicking in.

Night High by Mykawh March 2, 2016

night high 

When everything is funny.. usually using motion lotion.. blow up dolls.. right hand.. etc.. fone sex.. ne thing funny .. nothing on tv up late.. nothing to watch and its funny

im so nighthigh i can actually see stars while you are standing out side
whoa.. i see purple cows.. kuew.. "ehe..ehehe ahahah!!!"

night high by [ Deejay La0ziE ] Jimmy April 18, 2003

Night High 

When your always hyper at night time. When your jittery, like you just ate a bunch of sugar.

You: OMGOMGOMG
Friend: Your night high bro.

Night High by KJo990 November 11, 2012

Night High 

When it’s late at night and your sleep deprived, you start talking and acting as though you are high when you aren’t.

Nick: Why do I think like this
Daniel: Your night high

Night High by Eastjabumfuk October 31, 2020