high def moment 

Viewing any High Definition video and seeing something that, if the video was in standard definition, would otherwise have gone unnoticed or unrecognized. As long as the source is outputting at 720p or above, it is considered High Definition.
See also - HD Moment

I had a high def moment when I noticed my friend in the stands while watching the basketball game.

high def moment by Jenkem Hog January 29, 2008

high bitch moment 

When you have a high bitch moment and do something you will regret later on

John: yo dude what happens to her hair

Leo: she cut it all of while having a high bitch moment bro

high bitch moment by Buffdaddy69 October 9, 2019

High School Musical Moment 

A very rare occurrence when a song comes on and everyone sings with it because it is so familiar.

1. Today on the bus, "Hey There Delilah" came on the radio, and everyone started singing it. It was such a High School Musical Moment.

2. Yesterday, in art class, the art teacher turned the radio on. Everyone was silent until "Rock and Roll All Night" came on, then they started singing along; it was a total High School Musical Moment.

High School Musical Moment by Prinsen Kaos September 7, 2010

high off the moment

when someone is having the time of their life, and act high key drunk, but they're not high off of drugs or anything. No, they're high off the moment.

"OMG is that Chanel drinking her third bottle of coca-cola?"
"wasn't she on a diet-"
"dUdE nO, SHeS JUsT hiGh oFf ThE mOMeNt"

high off the moment by HighOffYourMom September 30, 2021

Memento High 

The state of being so high that one's short-term memory is unable to function, referring to the condition of the main character in the film Memento. This condition can lead one to write notes or write on their body to remember things like in Memento.

Stoner 1: Dude where are we?
Stoner 2: I don't know, I'm Memento High right now.
Stoner 1: Shit me too.
Stoner 2: Don't worry. I left myself notes.

Memento High by Patrick770 March 13, 2012

highmometer 

An internal mechanism that tells you when you are high enough, and need to stop smoking, based on the amount of marijuana you have ingested.

My highmometer is going off, but it's only whispering right now, it's not screaming.

highmometer by SwampBaby19! May 2, 2019